Solve the equation using suntraction. Show all your work. X-6y=11 and 2x-5y=1

Answers

Answer 1

Answer:

To solve the system of equations using subtraction, you need to eliminate one of the variables by adding or subtracting the equations. In this case, we can eliminate x by multiplying the first equation by 2 and subtracting it from the second equation:

2x - 5y = 1

- (2(x - 6y) = 2x - 12y = 22)

------------------------

-17y = -21

Now we can solve for y:

-17y = -21

y = (-21) / (-17)

y = 1.2353

Substitute y into one of the original equations to solve for x:

x - 6y = 11

x - 6(1.2353) = 11

x - 7.4118 = 11

x = 18.4118

Therefore, x = 18.4118 and y = 1.2353.

I hope this helps!


Related Questions

PLEASE HELP MEE!!!!! I REALLY NEED TO PASS, 100 POINTS!!!

Answers

Answer:

Step-by-step explanation:

i believe it is nearly as hard as my usual amount of challenge

. Bert has a well-shuffled standard deck of 52 cards, from which he draws one card; Ernie has a 12-sided die, which he rolls at the same time Bert draws a card. Compute the probability that:

a. Bert gets a Jack and Ernie rolls a five.

b. Bert gets a heart and Ernie rolls a number less than six.

c. Bert gets a face card (Jack, Queen or King) and Ernie rolls an even number.

d. Bert gets a red card and Ernie rolls a fifteen.

e. Bert gets a card that is not a Jack and Ernie rolls a number that is not twelve.

Answers

Therefore , the solution of the given problem of probability comes out to be a)1/78 ,b)65/624 ,c)1/4 ,d)0 and e)12/13.

What is probability, exactly?

The basic goal of any considerations technique is to assess the probability that a statement is accurate or that a specific incident will occur. Chance can be represented by any number range between 0 and 1, where 0 normally indicates a percentage but 1 typically indicates the level of certainty. An illustration of probability displays how probable it is that a specific event will take place.

Here,

a.

P(Bert gets a Jack and Ernie rolls a five) = P(Bert gets a Jack) * P(Ernie rolls a five)

= (4/52) * (1/12)

= 1/78

b.

P(Bert gets a heart and Ernie rolls a number less than six) = P(Bert gets a heart) * P(Ernie rolls a number less than six)

= (13/52) * (5/12)

= 65/624

c.

P(Bert gets a face card and Ernie rolls an even number) = P(Bert gets a face card) * P(Ernie rolls an even number)

= (12/52) * (6/12)

= 1/4

d.

P(Bert gets a red card and Ernie rolls a fifteen) = 0

e.

Ernie rolls a number that is not twelve, and Bert draws a card that is not a Jack:

A regular 52-card deck contains 48 cards that are not Jacks,

so the likelihood that Bert will draw one of those cards is 48/52, or 12/13.

On a 12-sided dice with 11 possible outcomes,

Ernie rolls a non-12th-number (1, 2, 3, etc.).

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what is the quotient of 837 and 26

Answers

Answer:

The quotient of 837 divided by 26 is approximately 32.2692 (rounded to four decimal places).

Consider the verbal phrase.

Two and nineteen hundredths times a number g, plus fifty-nine hundredths

Part A

Enter an expression to represent the verbal phrase.

g +


Part B

Evaluate the expression when g = 3.
3.96
7.16
8.34
8.93

Answers

verbal phrase can be represented by 7.16.

What is the verbal phrase?

Part A:

The verbal phrase can be represented by the following expression:

[tex]2.19g + 0.59[/tex]

Here, "Two and nineteen hundredths times a number g" can be written as 2.19g, and "plus fifty-nine hundredths" can be written as [tex]0.59[/tex]  .

Part B:

To evaluate the expression when  [tex]g = 3[/tex], we substitute 3 for g in the expression and simplify:

[tex]2.19g + 0.59[/tex]

[tex]= 2.19(3) + 0.59 [\ Substitute g = 3][/tex]

[tex]= 6.57 + 0.59[/tex]

[tex]= 7.16[/tex]

Therefore, the correct answer is [tex]7.16.[/tex]

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The given question is incomplete. the complete question is given below:

Consider the verbal phrase.

Two and nineteen hundredths times a number g, plus fifty-nine hundredths

Part A

Enter an expression to represent the verbal phrase.

g +

Part B

Evaluate the expression when g = 3.

3.96

7.16

8.34

8.93

Please help me thank u :)

Answers

Step-by-step explanation:

By rearranging the ages in increasing order;

22,28,32,40,40,50,55,57

Median = (40+40)÷2

= 80 ÷ 2

= 40

Mode = 40

( The value that occurs most)

Range = Highest value - Lowest value

= 57 - 22

= 35

Find the final amount of a $750 investment after 15 years at 8% interest compounded semiannually, quarterly and daily.

Answers

With given compound interest, the final amount of the investment after 15 years at 8% interest compounded semiannually, quarterly and daily are $2,067.87, $2,094.28, and $2,101.62, respectively.

What is Compound interest?

Compound interest is the addition of interest to the principal sum of a loan or deposit, or the interest earned on both the principal and any previously accrued interest. In other words, interest is computed not only on the original amount of money but also on any past interest gained. The interest generated on the cumulative interest can compound exponentially, resulting in enormous growth of an investment or loan sum over time. Compound interest is computed using a formula that takes the principle amount, interest rate, and compounding frequency into consideration.

Now,

To find the final amount of the investment, we can use the formula for compound interest:

A = P(1 + r/n)ⁿˣ

where:

A = final amount

P = principal (initial investment)

r = annual interest rate

n = times the interest is compounded per year

x = time in years

For semiannual compounding, n = 2 and x = 15:

A = 750(1 + 0.08/2)²*¹⁵= $2,067.87

For quarterly compounding, n = 4 and x = 15:

A = 750(1 + 0.08/4)⁴*¹⁵ = $2,094.28

For daily compounding, n = 365 (assuming no leap years) and x = 15:

A = 750(1 + 0.08/365)³⁶⁵*¹⁵ = $2,101.62

Therefore, the final amount of the investment after 15 years at 8% interest compounded semiannually, quarterly and daily are $2,067.87, $2,094.28, and $2,101.62, respectively.

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100 POINTS


Answer this question for me please.

Answers

Answer: Rectangle

Step-by-step explanation: The shape created by the cross-section is a rectangle because the cross-section shows a 2-dimensional slice of a 3-dimensional rectangular prism. Since a rectangular prism has rectangular faces, any cross-section taken perpendicular to the length of the prism will be a rectangle.

La Suma delos cuadrados de dos números naturales consecutivos es 181 halla dichos numeros

Answers

The two consecutive natural numbers whose sum of squares is 181 are 9 and 10

Let's assume that the two consecutive natural numbers are x and x+1. Then, we can write an equation based on the given information:

x² + (x+1)² = 181

Expanding the equation:

x² + x² + 2x + 1 = 181

Combining like terms:

2x² + 2x - 180 = 0

Dividing both sides by 2:

x² + x - 90 = 0

Now, we can use the quadratic formula to solve for x:

x = (-b ± √(b² - 4ac)) / 2a

where a = 1, b = 1, and c = -90

x = (-1 ± √(1 + 360)) / 2

x = (-1 ± √(361)) / 2

x = (-1 ± 19) / 2

We discard the negative value, as it does not correspond to a natural number:

x = 9

Therefore, the two consecutive natural numbers are 9 and 10, and their sum of squares is 81 + 100 = 181.

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PLSS HELP IMMEDIATELY

Answers

The continuous compounding rate earned by the investment is given as follows:

8.022%.

How to model continuous compounding?

The balance of an account after t years, using continuous compounding, is  modeled by the equation presented as follows:

A(t) = A(0)e^{kt}.

In which:

A(0) is the initial amount.k is the continuous compounding rates.

For this problem, the parameters are given as follows:

A(11) = 58, A(0) = 24, t = 11.

Hence the rate is obtained as follows:

24e^(11k) = 58

e^(11k) = 58/24

11k = ln(58/24)

k = ln(58/24)/11

k = 8.022%.

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Jay cuts identical squares from the corners of a
rectangular sheet of paper as shown in the adjoining
figure. Find the area of remaining portion.

Answers

The expression that represents the area of the remaining rectangular portion is given as follows:

A = -4x² + 12x + 6.

How to obtain the area of a rectangle?

To obtain the area of a rectangle, you need to multiply its length by its width. The formula for the area of a rectangle is:

Area = Length x Width

The dimensions for the rectangle are given as follows:

Length of 4x + 2.Width of 3.

Hence the area is given as follows:

A = 3(4x + 2)

A = 12x + 6.

Four squares of side length x -> area = x² are cut, hence the remaining area is given as follows:

A = -4x² + 12x + 6.

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Suppose that the function h is defined as follows.
if
-2
-1
h(x)= 0
1
2
Graph the function h.
-3.5 if-2.5 if-1.5 if -0.5 if 0.5 ≤x≤1.5
+
X
Ś

Answers

The required graph of the function given; h (x) has been attached.

Define a graph?

In mathematics, graph theory is the study of graphs, which are mathematical structures used to represent pairwise interactions between objects. In this definition, a network is made up of nodes or points called vertices that are connected by edges, also called links or lines. In contrast to directed graphs, which have edges that connect two vertices asymmetrically, undirected graphs have edges that connect two vertices symmetrically. Graphs are one of the primary areas of study in discrete mathematics.

Here as per the question the graph of the function, h (x) has been attached.

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Please help with #13!!
13.
m mFP=
mPD=

Answers

Answer:

Step-by-step explanation:

36 26 so 36 +26 = 89

Find each arc length. Round to the nearest tenth.




If FG = 27 yd, find the length of FED.


mFED= yards


(30 points) will give brainiest for effort

Answers

The length of arc FED is approximately 51.1 yards, rounded to the nearest tenth.

What is an arc length?

The length of a section of a circle's circumference is known as an arc length.

The radius of the circle and the angle the arc subtends at the centre of the circle are two variables that affect an arc's length.

To find the length of FED, we need to first find the measure of the arc EGD. Since a circle has 360 degrees, we can find the measure of arc EGD by subtracting the measures of arcs DGC, CGF, and FGE from 360:

m(EGD) = 360° - m(DGC) - m(CGF) - m(FGE)

m(EGD) = 360° - 80° - 47° - 90°

m(EGD) = 143°

The formula for arc length is:

Arc length = (central angle / 360) x (2πr)

We can use this information to find the radius of the circle:

FG = 2r

27 yd = 2r

r = 13.5 yd

Now we can use the formula for arc length to find the length of arc FED:

Arc length FED = ((∠FED) / 360) x (2πr)

We know that ∠(EGD) + ∠(FED) = 360, so we can solve for ∠(FED):

∠(FED) = 360° - ∠(EGD)

∠(FED) = 360° - 143°

∠(FED) = 217°

Plugging in the values, we get:

Arc length FED = (217° / 360) x (2π x 13.5 yd)

Arc length FED = (0.6028) x (84.78 yd)

Arc length FED = 51.11 yd

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if k(x) =3x, then f'(x)=?​

Answers

If k(x) = 3x, then f(x) = 3x^2 + C, where C is a constant. Taking the derivative of f(x), we get:

f'(x) = d/dx (3x^2 + C)
= 6x

So, f'(x) = 6x.

find the value of x ​

Answers

The value of x is given as follows:

x = 16.2.

What are similar triangles?

Similar triangles are triangles that share these two features listed as follows:

Congruent angle measures, as both triangles have the same angle measures.Proportional side lengths, which helps us find the missing side lengths.

First we must obtain the bases, splitting the figure into two separate similar triangles, with equivalent dimensions given as follows:

16 and y.30 and 34 - y.

Hence the proportional relationship used to obtain the value of y is given as follows:

16/y = 30/(34 - y)

Hence:

30y = 16(34 - y)

46y = 544

y = 544/46

y = 11.83.

Hence the bases are:

11.83 and 34 - 11.83 = 22.17.

Applying the geometric mean theorem, the value of x is given as follows:

x = sqrt(11.83 x 22.17)

x = 16.2.

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1. Suppose c = -11 + 3i. What two nonzero complex numbers could have been
added together to make c?
2. Find the value of iº.

Answers

Answer: To find two complex numbers that add up to c = -11 + 3i, we can set up the following system of equations:

a + b = -11

ai + bi = 3i

Solving for a and b, we can multiply the first equation by i and subtract it from the second equation multiplied by -1 to eliminate b:

ai + bi = 3i

-ai - bi = 11i

0 + 10bi = 14i

Simplifying, we get b = 1.4. Substituting this into the first equation gives:

a + 1.4 = -11

a = -12.4

So the two complex numbers that add up to c are -12.4 + 1.4i and 1.4i.

To find the value of iº, we need to evaluate i raised to the power of 90 degrees (or pi/2 radians) using Euler's formula:

e^(iθ) = cos(θ) + i sin(θ)

So we have:

iº = i^(90°) = e^(iπ/2) = cos(π/2) + i sin(π/2) = 0 + i(1) = i

Therefore, iº = i.

Step-by-step explanation:

Use the following bond listing for Pacific Bell to answer the following: A 5-column table with 1 row. Column 1 is labeled Bonds with entry PacBell 6 and StartFraction 5 Over 8 EndFraction 34. Column 2 is labeled current yield with entry 6.55. Column 3 is labeled Volume with entry 5. Column 4 is labeled Close with entry 99 and one-fourth. Column 5 is labeled net change with entry + startFraction 1 Over 8 EndFraction. What is the coupon rate and maturity date for this bond? a. The coupon rate is 6StartFraction 5 Over 8 EndFraction; the maturity date is 2034. b. The coupon rate is StartFraction 1 Over 8 EndFraction; the maturity date is 2034. c. The coupon rate is 6StartFraction 5 Over 8 EndFraction; the maturity date is 2099. d. The coupon rate is 6.55; the maturity date is in 5 years.

Answers

The coupon rate of the bond in fraction is 6 5/8 and in percentage is 6.625% and maturity date is 2034.

What is a fraction?

A fraction is written as a ratio of two integers, where the number on top is called the numerator and the number on the bottom is called the denominator. The denominator represents the total number of equal parts that make up a whole, while the numerator represents the number of parts that are being considered. For example, the fraction 2/5 represents 2 parts out of 5 equal parts that make up the whole. Fractions can be used to represent numbers between whole numbers, such as 1/2, 3/4, and 7/8.

Now,

The coupon rate of the bond is 6 5/8 or 6.625%.

The maturity date is not explicitly given in the bond listing. However, based on the convention used in bond listings, the year of maturity can be inferred from the number in the bond name. In this case, the bond name is "PacBell 6 5/8 34", which suggests that the bond matures in 2034.

Therefore, the answer is:

a. The coupon rate is 6 5/8 and the maturity date is 2034.

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find the radius of a cylinder if the volume is 2,035.75 in^3 and the height is 3 times the radius. use the formula V= pi r^2h

Answers

The radius of the cylinder is approximately 6.75 inches.

How to calculate volume of cylinder?

We can use the formula for the volume of a cylinder to solve this problem:

[tex]V = \pi r^2h[/tex]

We know that the volume V is 2,035.75 [tex]in^3[/tex], and the height h is 3 times the radius r. So we can write:

[tex]V = \pi r^2(3r)[/tex]

Simplifying this expression, we get:

V = 3π[tex]r^3[/tex]

To solve for r, we can divide both sides of the equation by 3π[tex]r^2[/tex]:

V/(3π[tex]r^2[/tex]) = r

Substituting the given value for V, we have:

2,035.75/(3π[tex]r^2[/tex]) = r

Multiplying both sides by 3πr^2, we get:

2,035.75 = 3π[tex]r^3[/tex]

Dividing both sides by 3π, we have:

[tex]r^3[/tex] = 2,035.75 / (3π)

Taking the cube root of both sides, we get:

r = [tex](2,035.75 / (3\pi ))^{1/3[/tex]

Using a calculator, we find that:

r ≈ 6.75 inches

Therefore, The cylinder has a radius of about 6.75 inches.

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The base of the right prism shown is a right triangle.

1. Name two lines parallel to AD.
2. Name a line skew to DE.
3. State the number of base edges.
4. State the number of lateral faces.
5. Find the base area,
6. Find the lateral area.
7. Find the volume.

Answers

Two lines parallel to AD are BF and CE.

Two lines skew to DE are EF and DF.

The number of base edges is three: DE, EF, and DF.

The number of lateral faces is three: ABDF, BCEF, and ACDE.

The base area is 6 square units.

The lateral area is 72 square units.

The volume is 36 cubic units.

What is volume?

A volume is simply defined as the amount of space occupied by any three-dimensional solid. These solids can be a cube, a cuboid, a cone, a cylinder, or a sphere. Different shapes have different volumes.

1. Name two lines parallel to AD.

BF, CE

2. Name a line skew to DE.

EF, DF

3. State the number of base edges.

DE, EF, DF

4. State the number of lateral faces.

3, Which are ABDF, BCEF, ACDE.

5. Find the base area,

the base of a prism is ΔDEF,

DE = AC = 3,

EF = BC = 4,

DF = 5

A = √(s(s-a)(s-b)(s-c))

s = (3 + 4 + 5)/2 = 6

A = √(s(s-a)(s-b)(s-c))

A = √(6(6-3)(6-4)(6-5))

A = √(6(3)(2)(1))

A = √36

A = 6

6. Find the lateral area.

the lateral area would be the sum of the area of the four rectangular faces.

A = lb

ABDF

A1 = 5* 6 = 30,

BCEF,

A2 =  4 * 6 = 24

ACDE

A3 = 3  *6 = 18

lateral area = 30 + 24 + 18

= 72

7. Find the volume.

The volume of a prism can be calculated by multiplying the area of the base by the height of the prism. Therefore, the formula for the volume of a prism is:

V = Bh

Where V is the volume, B is the area of the base, and h is the height of the prism.

V = 6 * 6 = 36

hence,

Two lines parallel to AD are BF and CE.

Two lines skew to DE are EF and DF.

The number of base edges is three: DE, EF, and DF.

The number of lateral faces is three: ABDF, BCEF, and ACDE.

The base area is 6 square units.

The lateral area is 72 square units.

The volume is 36 cubic units.

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0\left\{-10\le x\le10\right\}
Describe the transformations (vertical translation, horizontal translation, and dilation/reflection) from the parent function that happened to these formulas

Answers

The formula g(x) = 2 * 0{-10≤x+3≤10} represents a function that has been horizontally shifted left by 3 units, reflected about the y-axis, and vertically scaled by a factor of 2.

What is Function?

A function is a mathematical rule that assigns each input from a set (domain) a unique output from another set (range), typically written as y = f(x).

The notation "0{-10≤x≤10}" typically represents the domain of a function or an inequality. It means that the function is defined only for the values of x that are between -10 and 10 (including -10 and 10).

Assuming that the function in question is a constant function equal to zero, the parent function is f(x) = 0.

To describe the transformations that happened to this function, we need more information about the specific formula. For example, if the formula is:

g(x) = 0{-10≤x≤10}

Then there are no transformations from the parent function. The function is simply a constant function that is equal to zero over the interval [-10, 10].

However, if the formula is something like:

g(x) = 2 * 0{-10≤x+3≤10}

Then we can describe the transformations as follows:

Horizontal translation: The function has been shifted horizontally to the left by 3 units. This means that the point (3, 0) on the parent function is now located at the origin (0, 0) on the transformed function.

Dilation/reflection: The function has been reflected about the y-axis and vertically scaled by a factor of 2. This means that the point (-1, 0) on the parent function is now located at (-4, 0) on the transformed function, and the point (1, 0) on the parent function is now located at (2, 0) on the transformed function.

Vertical translation: There is no vertical translation in this case, since the constant function is already centered at y = 0.

To summarize, the formula g(x) = 2 * 0{-10≤x+3≤10} represents a function that has been horizontally shifted left by 3 units, reflected about the y-axis, and vertically scaled by a factor of 2.

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The formula g(x) = 2 * 0{-10≤x+3≤10} represents a function that has been horizontally shifted left by 3 units, reflected about the y-axis, and vertically scaled by a factor of 2.

What is Function?

A function is a mathematical rule that assigns each input from a set (domain) a unique output from another set (range), typically written as y = f(x).

The notation "0{-10≤x≤10}" typically represents the domain of a function or an inequality. It means that the function is defined only for the values of x that are between -10 and 10 (including -10 and 10).

Assuming that the function in question is a constant function equal to zero, the parent function is f(x) = 0.

To describe the transformations that happened to this function, we need more information about the specific formula. For example, if the formula is:

g(x) = 0{-10≤x≤10}

Then there are no transformations from the parent function. The function is simply a constant function that is equal to zero over the interval [-10, 10].

However, if the formula is something like:

g(x) = 2 * 0{-10≤x+3≤10}

Then we can describe the transformations as follows:

Horizontal translation: The function has been shifted horizontally to the left by 3 units. This means that the point (3, 0) on the parent function is now located at the origin (0, 0) on the transformed function.

Dilation/reflection: The function has been reflected about the y-axis and vertically scaled by a factor of 2. This means that the point (-1, 0) on the parent function is now located at (-4, 0) on the transformed function, and the point (1, 0) on the parent function is now located at (2, 0) on the transformed function.

Vertical translation: There is no vertical translation in this case, since the constant function is already centered at y = 0.

To summarize, the formula g(x) = 2 * 0{-10≤x+3≤10} represents a function that has been horizontally shifted left by 3 units, reflected about the y-axis, and vertically scaled by a factor of 2.

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Let L1 = {a, b, ab} and L2 = {λ, bb, ab} be languages over Σ = {a, b}. Write down the
elements of each of the following sets:

Answers

The answers below provides the elements of the sets L1 ∪ L2, L1 ∩ L2, L1 concatenation L2, L1*, and L2* where L1 and L2 are languages over Σ = {a, b}.

What are the elements of the following sets?

a) L1 ∪ L2:

The union of two sets is the set of all elements that are in either set. Therefore,

L1 ∪ L2 = {a, b, ab, λ, bb}

b) L1 ∩ L2:

The intersection of two sets is the set of all elements that are in both sets. Therefore,

L1 ∩ L2 = {ab}

c) L1 concatenation L2:

The concatenation of two languages is the set of all possible combinations of elements where the first element comes from the first language and the second element comes from the second language. Therefore,

L1 concatenation L2 = {aλ, a bb, aab, bλ, bbb, bab, abλ, abb, abab}

d) L1*:

L1* is the Kleene star of L1, which is the set of all possible combinations of elements from L1, including the empty string λ. Therefore,

L1* = {λ, a, b, ab, aa, bb, aaa, aab, abb, bbb, aaaa, aaab, aabb, abbb, ...}

e) L2*:

Similarly,

L2* = {λ, bb, ab, bbbb, abb, aabb, abbb, aabbb, ...}

Note that the Kleene star of L2 includes only elements made up of b's and λ.

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For each of the following three scenarios, state which hypothesis test you would use from among the four introduced so far: the z test, the single-sample t test, the paired-samples t test, and the independent-samples t test. (Note: In the actual studies described, the researchers did not always use one of these tests, often because the actual experiment had additional variables.) Explain your answer. (20pts) a. A study of 40 children who had survived a brain tumor revealed that the children were more likely to have behavioral and emotional difficulties than were children who had not experienced such a trauma (Upton & Eiser, 2006). Parents rated children’s difficulties, and the ratings data were compared with known means from published population norms. b. Talarico and Rubin (2003) recorded the memories of 54 students just after the terrorist attacks in the United States on September 11, 2001—some memories related to the terrorist attacks on that day (called flashbulb memoriesfor their vividness and emotional content) and some everyday memories. They found that flashbulb memories were no more consistent over time than everyday memories, even though they were perceived to be more accurate. c. The HOPE VI Panel Study (Popkin & Woodley, 2002) was initiated to test a U.S. program aimed at improving troubled public housing developments. Residents of five HOPE VI developments were examined at the beginning of the study so researchers could later ascertain whether their quality of life had improved. Means at the beginning of the study were compared to known national data sources (e.g., the U.S. Census, the American Housing Survey) that had summary statistics, including means and standard deviations.

Answers

Answer:

a. For the study of 40 children who had survived a brain tumor, the appropriate hypothesis test would be a single-sample t test. This is because the study involves comparing the ratings data from the parents with known means from published population norms. A single-sample t test is used to determine whether a sample mean is statistically different from a known population mean. In this case, the sample mean is the ratings data from the parents, and the population mean is the known means from published population norms.

b. For Talarico and Rubin's study of memories, the appropriate hypothesis test would be a paired-samples t test. This is because the study involves comparing the consistency of flashbulb memories and everyday memories over time, for the same group of individuals. A paired-samples t test is used to determine whether there is a statistically significant difference between two related samples, such as before and after measurements for the same group of individuals.

c. For the HOPE VI Panel Study, the appropriate hypothesis test would be an independent-samples t test. This is because the study involves comparing the means of residents in the five HOPE VI developments at the beginning of the study with known national data sources that had summary statistics, including means and standard deviations. An independent-samples t test is used to determine whether there is a statistically significant difference between the means of two independent groups. In this case, the two independent groups are the residents in the HOPE VI developments and the known national data sources.

Step-by-step explanation:

The line plot displays the number of roses purchased per day at a grocery store.

A horizontal line starting at 0 with tick marks every one unit up to 10. The line is labeled Number of Rose Bouquets, and the graph is titled Roses Purchased Per Day. There is one dot above 10. There are two dots above 1 and 4. There are three dots above 2 and 5. There are 4 dots above 3.

Which of the following is the best measure of variability for the data, and what is its value?

The IQR is the best measure of variability, and it equals 3.
The IQR is the best measure of variability, and it equals 9.
The range is the best measure of variability, and it equals 3.
The range is the best measure of variability, and it equals 9.

Answers

The range is the best measure of variability for this data, and its value is 4.

Which of the following is the best measure of variability for the data, and what is its value?

The line plot displays the number of roses purchased per day at a grocery store, with the data values ranging from 0 to 4 (since there are no dots above 4).

The best measure of variability for this data is the range, which is the difference between the maximum and minimum values in the data set. In this case, the minimum value is 0 and the maximum value is 4, so the range is:

Range = Maximum value - Minimum value = 4 - 0 = 4

Therefore, the range is the best measure of variability for this data, and its value is 4.

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Write an equation for the polynomial graphed below

Answers

The polynomial in factor form is y(x) = - (1 / 6) · (x + 3) · (x + 1) · (x - 2) · (x - 3).

How to derive the equation of the polynomial

In this problem we find a representation of polynomial set on Cartesian plane, whose expression is described by the following formula in factor form:

y(x) = a · (x - r₁) · (x - r₂) · (x - r₃) · (x - r₄)

Where:

x - Independent variable.r₁, r₂, r₃, r₄ - Roots of the polynomial.a - Lead coefficient.y(x) - Dependent variable.

Then, by direct inspection we get the following information:

y(0) = - 3, r₁ = - 3, r₂ = - 1, r₃ = 2, r₄ = 3

First, determine the lead coefficient:

- 3 = a · (0 + 3) · (0 + 1) · (0 - 2) · (0 - 3)

- 3 = a · 3 · 1 · (- 2) · (- 3)

- 3 = 18 · a  

a = - 1 / 6

Second, write the complete expression:

y(x) = - (1 / 6) · (x + 3) · (x + 1) · (x - 2) · (x - 3)

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.6 In 1 and 2, write the expression using words. 1. (23,000-789) × 19 In 3-4, read the exproccia 2.6+(88×7)​

Answers

1) the  expression in words can be written as "Nineteen times the difference between twenty-three thousand and seven hundred and eighty-nine."

How to write the expression in words

1) The expression (23,000-789) × 19 can be written in words using the following steps:

The expression inside the parentheses is the difference between 23,000 and 789, which is 22,211.

The expression is then multiplied by 19, which means it is being increased by 19 times.

So the final expression in words can be written as "Nineteen times the difference between twenty-three thousand and seven hundred and eighty-nine."

2) The expression 2.6+(88×7) can be read in words using the following steps:

The expression inside the parentheses, 88×7, means 88 multiplied by 7.

The result of the multiplication is 616.

The expression then becomes 2.6 added to 616.

So the final expression in words can be read as "Two point six plus six hundred and sixteen."

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How much money would an investment of 300 at rate of 12 percent compound monthly be after 4 years

Answers

Answer:

data given

principal 300

rate12%

time 4 years

Step-by-step explanation:

from

A=P[1+r/100]^n

where

A is amount

p is principal

r is rate

n is interest period

now,

A= 300[1+12/(100×12)]^(12×4)

A=300×1.01^48

A=483.67

: .would be 483.67

7. Fill in the bubbles to indicate whether each expression is linear or not linear.
5x Linear or Nonlinear
6x+1 Linear or Nonlinear
10xy Linear or Nonlinear
17 Linear or Nonlinear
4x^2 Linear or Nonlinear

Answers

5x is  Linear , 6x+1 is Linear , 10xy is Nonlinear , 17 is  Linear  , 4x² is  Nonlinear

what is Nonlinear ?

Nonlinear refers to a function, equation, or expression that does not have a constant rate of change. In other words, the value of the dependent variable does not increase or decrease at a constant rate as the independent variable changes.

In the given question,

5x: Linear. This is a linear expression because it is a first-degree polynomial with a single variable, x. It has a constant rate of change, meaning that the value of y increases or decreases at a constant rate as x increases or decreases.

6x+1: Linear. This is also a linear expression because it is a first-degree polynomial with a single variable, x. It has a constant rate of change, meaning that the value of y increases or decreases at a constant rate as x increases or decreases.

10xy: Nonlinear. This expression is not linear because it contains a product of two variables, x and y. A linear expression can only have terms that involve a single variable raised to the first power. This expression has a degree of 2, which makes it a quadratic expression.

17: Linear. This is a linear expression because it is a constant value. It has a slope of 0, which means that the value of y does not change as x changes.

4x²: Nonlinear. This expression is not linear because it contains a variable, x, raised to the power of 2. A linear expression can only have terms that involve a single variable raised to the first power. This expression has a degree of 2, which makes it a quadratic expression.

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Given that sin 0 = 20/29 and that angle terminates in quadrant III, then what is the value of tan 0?

Answers

The value of Tanθ is 20/21.

What is Pythagorean Theorem?

A right triangle's three sides are related in Euclidean geometry by the Pythagorean theorem, also known as Pythagoras' theorem. According to this statement, the areas of the squares on the other two sides add up to the size of the square whose side is the hypotenuse.

Here, we have

Given: sinθ = -20/29 and that angle terminates in quadrant III.

We have to find the value of tanθ.

Using the definition of sine to find the known sides of the unit circle right triangle. The quadrant determines the sign on each of the values.

Sinθ = Perpendicular/hypotenuse

Find the adjacent side of the unit circle triangle. Since the hypotenuse and opposite sides are known, use the Pythagorean theorem to find the remaining side.

Adjacent = - √Hypotenuse² - perpenducualr²

Replace the known values in the equation.

Adjacent = -√29² - (-20)²

Adjacent = -21

Find the value of tangent.

Tanθ = Perpendicular/base

Tanθ = -20/(-21)

Hence, the value of Tanθ is 20/21.

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Which function represents the graph of y = 10(4)^x ?

A. f
B. g
C. h
D. j

Answers

The graph represented by the exponential function y = 10(4)ˣ is graph J.

What is function?

In mathematics, a function is a rule that assigns a unique output (or dependent variable) for every input (or independent variable) in a given set. It is a relation between two sets where each element of the first set corresponds to exactly one element of the second set. Functions are often represented using function notation, which typically consists of a letter to represent the function followed by the input in parentheses.

Here,

The function y = 10(4)ˣ represents an exponential function with a base of 4. Exponential functions with a base greater than 1 increase rapidly as the input variable x increases.

As for the graph, we can plot several points and sketch the curve, or use a graphing calculator to graph the function. Here are a few points to plot:

x y

-2 0.025

-1 0.4

0 10

1 160

2 2560

Using a graphing calculator or plotting these points on graph paper and connecting them with a smooth curve, we can see that the graph of y = 10(4)ˣ is an exponential curve that increases rapidly as x increases. The graph approaches, but never touches, the x-axis as x approaches negative infinity, and the graph becomes steeper and steeper as x increases.

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The ratio of the surface areas of two similar cylinders is 16/25
. The radius of the circular base of the larger cylinder is 0.5 centimeters.

What is the radius of the circular base of the smaller cylinder?

Answers

The radius of the circular base of the smaller cylinder is approximately 0.625 centimeters.

What is surface area?

The surface area is the area occupied by a two-dimensional flat surface. It has a square unit of measurement. The surface area of a three-dimensional object is the space taken up by its outer surface.

The ratio of the surface areas of two similar cylinders is equal to the square of the ratio of their corresponding radii. Let r be the radius of the circular base of the smaller cylinder. Then we have:

(surface area of larger cylinder) / (surface area of smaller cylinder) = (r_l / r)² = 16/25

where r_l is the radius of the circular base of the larger cylinder.

We know that r_l = 0.5 cm, so we can solve for r:

(r_l / r)² = 16/25

(0.5 / r)² = 16/25

0.25 / r² = 16/25

r² = 0.25 * 25 / 16

r² = 0.390625

r = √(0.390625) ≈ 0.625

Therefore, the radius of the circular base of the smaller cylinder is approximately 0.625 centimeters.

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