If the frame has 2 inches of width and its area is 208 inches of square. The dimensions of square without frame is 6.75 and 13.50.
Let the width of rectangle without frame is b.
Let the height of rectangle without frame is h.
Since the base of a square without frame is the double of its height. So
b = 2h...............(1)
The frame has 2 inches of width, so;
The width of rectangle with frame = b + 4
The height of rectangle with frame = h + 4
The area of the rectangle with frame = 208 inches of square
The formula of area of rectangle
A = Height × Width
(h + 4) × (b + 4) = 208
Putting the value of b from the equation 1
(h + 4) × (2h + 4) = 208
Simplify
h(2h + 4) + 4(2h + 4) = 208
2h^2 + 4h + 8h + 16 = 208
2h^2 + 12h + 16 = 208
Subtract 208 on both side, we get
2h^2 + 12h - 192 = 0
Taking common 2 from the equation, we get
h^2 + 6h - 86 = 0
After factoring the equation we get
h = (−3+√95, −3−√95)
h = 6.75, -12.75
The height can't be negative so we use the positive value of h.
Now putting the value of h in the equation 1.
b = 2×6.75
b = 13.50
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The complete question is:
The base of a square without frame is the double of its height, if the frame has 2 inches of width and its area is 208 inches of square. Find the dimensions of the square without frame.
Given the function h(x)=3x, which statement is true about h(x)?
O The function is decreasing on the interval (-∞, 0).
O The function is increasing on the interval (-∞, 0).
O The function is decreasing on the interval (0, ∞).
O The function is increasing on the interval (0, ∞).
Answer:
Two statement are true.
O The function is increasing on the interval (-∞, 0).
O The function is increasing on the interval (0, ∞).
Step-by-step explanation:
The function h(x) = 3x is a linear function (straight line) with a slope of 3, and a y-intercept of 0. The constant, positive slope means that h(x) will increase over the interval (-∞, ∞).
See the attached graph.
Help me please and thank you !!!!
The simplification of qr⁻⁴s⁰q⁻⁸r⁻¹s⁰q⁻¹rs⁹ using positive exponent is expressed as [tex]$ \frac{s^9}{q^8r^4}[/tex]
What is a positive exponent?A positive exponent indicates that the base should be multiplied by that many.
An exponent's sign indicates how many times to multiply or divide a base number. A negative exponent indicates the opposite. Negative exponents like xn can be rewritten as 1 / rs. As an illustration, qr^-4 s^6 q ^-8 s^6 q^-1 rs^6
The Power Rule for Exponents is a further exponent rule that follows from this. You multiply the exponents while keeping the base constant to simplify a power of a power. As an illustration, b for any positive s^6 q ^-8 s^6 q^-1 rs^6 number x and integers q and s.
⇒ qr⁻⁴s⁰q⁻⁸r⁻¹s⁰q⁻¹rs⁹
⇒ qr⁻⁴ × 1q⁻⁸r⁻¹×1q⁻¹rs⁹
⇒ qr⁻⁴ × 1q⁻⁸r⁻¹×1q⁻¹rs⁹
⇒ qr⁻⁸ × r⁻⁴ × s⁹
[tex]$ \Rightarrow \frac{1}{q^8} \times \frac{1}{r^4} \times s^9[/tex]
[tex]$ \Rightarrow \frac{s^9}{q^8r^4}[/tex]
Thus , The simplification of qr⁻⁴s⁰q⁻⁸r⁻¹s⁰q⁻¹rs⁹ using positive exponent is expressed as [tex]$ \frac{s^9}{q^8r^4}[/tex]
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the quotient of y and 4 is at most 19
The inequality of the statement is y/4 ≤ 19
How to determine the inequalityFrom the question, we have the following parameters that can be used in our computation:
A mathematical statement represented as
the quotient of y and 4 is at most 19
The variable in the above statement is y
This means that the quotient of y and 4 cannot exceed 19
The term cannot exceed implies less than or equal to
So, we have the following representation
y/4 ≤ 19
Hence, the statement is
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I need help with elimination, the first part is 4x+5y=48 and the second part is 7x–3y=−10
The solution to the system of equations in this problem is given as follows:
(2,8).
How to solve the system of equations?The system of equations for this problem is defined as follows:
4x + 5y = 48.7x - 3y = -10.To eliminate the variable y, we multiply the first equation by 3 and the second by 5, hence:
12x + 15y = 144.35x - 15y = -50.Adding the two equations, the solution for x is obtained as follows:
47x = 94
x = 94/47
x = 2.
Hence the solution for y is obtained as follows:
4(2) + 5y = 48
5y = 40
y = 40/5
y = 8.
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Please help me this is driving me crazy
Answer:
24 days = 1500 tables
25 days = Fewer than 1500 tables
Step-by-step explanation:
So we have the inequality of < which is fewer than. Let's start by labeling all the numbers given.
What we want to find is how many days, so we'll make days = x
2100 is the initial and they sell 25 a day... 25 a x.
Combining them all we get a basic inequality of:
2100 - 25x < 1500
Let's get X alone.
Subtracting 2100 from both sides gives you
-25x < -600.
We have negatives on both sides. For me, if I see that, I make both of them positive;
25x < 600
Last step is to divide the 25 out of the X which means you'll divide 25 by 600 also
X = 24
Which means day 24 will be exactly 1500. We wanted fewer though, so adding a day gives you an answer of 25 days.
Multiply.
(x² - 5x) (2x²+x-3)
O A. 2x+9x3 - 8x² + 15x
OB. 2x4-9x3-8x² + 15x
OC. 4x+9x3-8x² + 15x
OD. 2-9x3-9x² - 15x
The resultant of the given expression (x² - 5x) (2x²+x-3) is 2x^4 - 7x^3 -8 x^2 + 15x .
What is Algebraic expression ?
Algebraic expression can be defined as the combination of variables and constants.
Given expression,
(x² - 5x) (2x²+x-3)
= x^2 ( 2x^2+x-3) - 5x(2x^2 + x - 3)
= 2x^4 + x^3 - 3x^2 - 5x * 2x^2 + x*-5x - 3 * -5x
= 2x^4 + x^3 -3x^2 - 10 x^3 - 5x^2 + 15x
= 2x^4 + x^3 - 10x^3 -3x^2 - 5x^2 + 15x
= 2x^4 - 7x^3 -8 x^2 + 15x .
Hence, The resultant of the given expression (x² - 5x) (2x²+x-3) is 2x^4 - 7x^3 -8 x^2 + 15x .
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what is the answer to this
The matching of the inequality with the statement will be 1-B, 2-D, 3-A, and 4-C.
What is inequality?Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.
The matching of inequality with the statement is given as,
The inequality t < 28 represents that Tia ran the race in under 28 seconds.The inequality t > 28 represents that the temperature is warmer than 28°F.The inequality t < 29 represents that Tony is younger than 29 years old.The inequality t > 29 represents that the table is heavier than 29 kilograms.The matching of the inequality with the statement will be 1-B, 2-D, 3-A, and 4-C.
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if an integer is randomly selected from all positive 2-digit integers, what is the probability that the integer chosen has (a) a 4 in the tens place? (b) at least one 4 in the tens place or the units place? (c) no 4 in either place?
The probability of 4 in the tens place is [tex]\frac{1}{9}[/tex], the probability of at least one 4 in the tens place or the units place is [tex]\frac{1}{5}[/tex], the probability no 4 in either place is [tex]\frac{4}{5}[/tex].
(a) total number of 2-digit terms =(99 - 10) + 1 = 90
n(s) = 90
A probability is a number that reflects the chance or likelihood that a particular event will occur. Probabilities can be expressed as proportions that range from 0 to 1, and they can also be expressed as percentages ranging from 0% to 100%
number of 2 digits that have 4 in tens place = 40, 41, 42 ......49
n(a) = 10
P(A) =[tex]\frac{ n(a)}{n(s)}[/tex]
Substituting the values
P(A) = [tex]\frac{10}{90}[/tex]
P(A) = [tex]\frac{1}{9}[/tex]
Therefore, P(A) = [tex]\frac{1}{9}[/tex]
(b) From the previous one, we know the P(A) = [tex]\frac{1}{9}[/tex]
Number of 4's in units place = 14, 24, 34.....94 = 9
n(b) = 9
P(B) = [tex]\frac{ n(b)}{n(s)}[/tex]
Substituting the values
P(B) = [tex]\frac{9}{90}[/tex]
P(B) =[tex]\frac{1}{10}[/tex]
P(A and B) = [tex]\frac{1}{10}[/tex]
Using OR probability, we have
P(A or B) = P(A) + P(B) - P(A and B)
P([tex]\frac{1}{9}[/tex] or [tex]\frac{1}{10}[/tex]) = [tex]\frac{1}{9}[/tex] + [tex]\frac{1}{10}[/tex] - [tex]\frac{1}{90}[/tex]
P([tex]\frac{1}{9}[/tex]or [tex]\frac{1}{10}[/tex]) = [tex]\frac{1}{5}[/tex]
Therefore, P([tex]\frac{1}{9}[/tex]or [tex]\frac{1}{10}[/tex]) = [tex]\frac{1}{5}[/tex]
(c) Probability of no 4 in either place = 1 - ( probability of 4 in either place)
= 1 - [tex]\frac{1}{5}[/tex] = [tex]\frac{4}{5}[/tex]
Therefore, probability of no 4 in either place = [tex]\frac{4}{5}[/tex]
Therefore, the probability that the integer chosen has a 4 in the tens place is [tex]\frac{1}{9}[/tex], P([tex]\frac{1}{9}[/tex] or [tex]\frac{1}{10}[/tex]) = [tex]\frac{1}{5}[/tex], and probability of no 4 in either place = [tex]\frac{4}{5}[/tex].
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You can graph the solutions of an inequality on a number line. How can you show the solutions of the inequality 3x +2 ≥ 1/2 ( x + 5 )
A graph of the solutions of this inequality 3x + 2 ≥ 1/2(x + 5) is shown on the number line attached below.
How to graph the solutions of the inequality?In this exercise, we would solve the given inequality by making x the subject of formula as follows;
3x + 2 ≥ 1/2(x + 5)
By multiplying both sides of the inequality by 2, we have the following:
(3x + 2) × 2 ≥ 1/2(x + 5) × 2
6x + 4 ≥ x + 5
By rearranging and collecting like terms, we have the following:
6x - x ≥ 5 - 4
5x ≥ 1
x ≥ 1/5
Next, we would use an online graphing calculator to plot the inequality as shown in the graph attached below. Additionally, the circle on the number line (graph) is closed because of the greater than or equal to (≤) symbol.
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simplify the expression
Pls help me find the answer for this
Suppose you roll the number cube 199 more times would you expect the experimental probability of rolling a 3 or 4 the same as your answer in exercise 5
How do you isolate the variable in x + 5 = 12?
a tin box of 1 m length, 85cm width and 60cm depth is to be made. if the box is without top, find the area of the tin required to make the box and the cost of tin at the rate of 0.50 Rupees per sq. cm
The area of the tin box without the top is 39100 square cm.
The cost of making this tin box is Rs. 19550.
What is a cuboid?A cuboid is a three-dimensional closed figure which has volume along with surface area.
The volume of a cuboid is the product of its length, width, and height.
The total surface area of a cuboid is 2(lw + wh + wl) and the lateral surface area is 2(l + w)×h.
Given, A tin box of 1 m in length, 85cm in width, and 60cm in depth is to be made.
We know the total surface area of a cuboid is 2(lw + wh + wl).
Therefore, The surface area of the cuboid without the top would be,
= 2(lw + wh + wl) - (l×w).
= 2(100×85 + 85×60 + 85×100) - (85×60).
= 2(22100) - 5100.
= 44200 - 5100.
= 39100 square cm.
The cost of making this tin box is Rs.(39100×0.50).
= Rs. 19550.
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A plane is on its approach to land on the runway. The jet’s height above the ground is given in feet as a function of the time in seconds. The following table tracks the plane as it lands:
t (in seconds)
h (in feet)
0
4000
5
3500
10
3000
15
2500
20
2000
25
1500
Is this function linear? If it is, what is the slope? Use the formula m = StartFraction delta h Over delta t EndFraction.
a.
No, this is not a linear function.
b.
Yes, this function is linear; the slope is 500 feet/second.
c.
Yes, this function is linear; the slope is 100 feet/second.
d.
Yes, this function is linear; the slope is -100 feet/second.
Answer:
d. Yes, this function is linear; the slope is -100 feet/second.
Step-by-step explanation:
Find the difference in height at two different time periods.
If
Δh = difference in height values
Δt = difference in seconds
then
[tex]\mathrm{slope = \dfrac{\Delta h}{\Delta y}}[/tex]
Take the difference in heights at t = 0 and t = 5
The height drops from 4000 to 3500 feet so Δh = 3500 - 400 = -500
Δt = 5- 0 = 5 seconds
slope = -500/5 = -100
If you compute the slope between any pair of heights and time difference you will get the same value
So slope is constant indicating a linear function
A coffee shop has a group of seats at the counter and t individual tables, where each
table has the same number of seats. If 2t + 8 represents the total number of seats in the
restaurant, what does 8 represent?
a)the number of seats at each table
b) the number of seats at the counter
c) the total number of customers in the coffee shop
d) the total number of tables in the coffee shop
In the expression 2t+8, 8 represents the number of seats at each table.
What is Expression?An expression is combination of variables, numbers and operators.
Given that A coffee shop has a group of seats at the counter and t individual tables.
where each able has the same number of seats.
2t + 8 represents the total number of seats in the restaurant.
8 represents the number of seats at each table and 2t is the number of individual seats.
Hence, in the expression 2t+8, 8 represents the number of seats at each table.
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+
At a sale this week, a sofa is being sold for $173.60. This is a 72% discount from the original price.
What is the original price?
The original price of the sofa before the discount is $241.11.
What are percentages?A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to compute a percentage of a number, we should divide it by its whole and then multiply it by 100. The proportion therefore refers to a component per hundred. Per 100 is what the term percent signifies. The letter "%" stands for it.
Let the original price of the sofa be x.
Given that 72% of the original price is $173.60, this can be written mathematically as follows:
72/100 × x = 173.60
72x = 17360
x = 241.11
Hence, the original price of the sofa before the discount is $241.11.
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30 5.109 ÷ 100 in decimal
The result of the division of the number by 100 gives 3.05109 in decimal.
Define the term decimal number?A decimal is really a number that is divided into two parts: another whole and a fraction.
Between integers, decimal numbers are used to express the numerical value of complete and partially whole quantities.Then, there are two parts to a decimal number: a whole number portion and a fractional portion. The whole component of something like a decimal number has the same decimal point value system as the complete number. After the decimal point, however, when we proceed to the right, we obtain the fractional portion of the decimal number.For the given number.
= 305.109 ÷ 100
Then point will shift to 2 decimals towards left.
= 3.05109
Thus, the result of the division of the number by 100 gives 3.05109 in decimal.
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Can someone write an equivalent expression to 8(y - 7)?
Answer: 8y-56
Step-by-step explanation: the equivalent expression is 8y-56
Answer: 8y - 56
Step-by-step explanation: Hello! Here are the steps to solve this:
8(y - 7) Use the distributive property, distribute 8 to y and 8 to -7
8y - 56 8 x y = 8y, 8 x -7 = -56
8y - 56 is an equivalent expression to 8(y - 7) because it is simplified. I hope this helps!
Find the equation for the circle with a diameter whose endpoints are (2,−5​) and (-3,1).
Write the standard equation for the circle.
(Use integers or fractions for any numbers in the equation.)
The equation for the circle with a diameter whose endpoints are (2, -5) and (-3, 1) is (x - 1)^2 + (y - 1)^2 = 13.
The endpoints are (2, -5) and (-3,1).
The standard form equation for a circle is known as
[tex](x-a)^2+(y-b)^2=r^2[/tex]
where (a, b) are the center's coordinates and (r) is the radius.
Taking into account the stated endpoints of the diameter. The center will then be at the midpoint, and the radius will be the distance between the center and either of the two endpoints.
Calculating the midpoint is as follows:
[tex]\left(\frac{x_{1}+x_{2}}{2}, \frac{y_{1}+y_{2}}{2}\right)[/tex]
where, [tex](x_{1},y_{1})[/tex] and [tex](x_{2},y_{2})[/tex] are two points.
Now putting the values
[tex]\left(\frac{x_{1}+x_{2}}{2}, \frac{y_{1}+y_{2}}{2}\right)=\left(\frac{-2+4}{2}, \frac{3-1}{2}\right)[/tex]
[tex]\left(\frac{x_{1}+x_{2}}{2}, \frac{y_{1}+y_{2}}{2}\right)=\left(\frac{2}{2}, \frac{2}{2}\right)[/tex]
[tex]\left(\frac{x_{1}+x_{2}}{2}, \frac{y_{1}+y_{2}}{2}\right)=\left(2, 1)[/tex]
Now we determine the equation of circle.
The center (2, 1) and the terminal are the two points (-2, 3).
r = [tex]\sqrt{(-2-1)^2+(3-1)^2}[/tex]
r =[tex]\sqrt{(-3)^2+(2)^2}[/tex]
r = [tex]\sqrt{9+4}[/tex]
r = √13
Now we can write the equation of circle as:
(x - 1)^2 + (y - 1)^2 = (√13)^2
(x - 1)^2 + (y - 1)^2 = 13
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The complete question is:
Find the equation for the circle with a diameter whose endpoints are (2, -5) and (-3, 1).
Write the standard equation for the circle.
11. A C Best Buy is selling a 62" TV for $1,250. The TV is on sale for 15% off and there is a 6% sales tax. What is the final cost of the TV? $998.75 $1126.25 B D $198.75 $1523.75
Answer:
$1,684.25
Step-by-step explanation:
(.85 x 1250) = 1062.50 If we take off 15% we leave on 85% which as a decimal is .85
Now add the tax
1062.50 + .06(1062.50)
1620.50 + 63.75
1684.25
Find the surface area of this rectangular prism. Be sure to include the correct unit in your answer.
PLSSSSS HELPPP!!!!!
The surface area of the rectangular prism is 112 square metes.
What is surface area?The sum of all area of each surface that make up an object is referred to as its surface area.
So that in the given question,
Area of a rectangle = length x width
i. area of its base = length x width
= 8 x 2
= 16 sq. m
ii. area of its front surface = length x width
= 4 x 8
= 32 sq. m
iii. area of it one of its sides = length x width
= 4 x 2
= 8 sq. m
Therefore,
surface area of the rectangular prism = (2 x 16) + (2 x 32) + (2 x 8)
= 32 + 64 + 16
= 112
The surface area of the rectangular prism is 112 square meters.
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use zero product property to determine x ints of y= x^2 +4x-20 exact and approximate
By cancelative property, the roots of quadratic equation x² + 4 · x - 20 are: Exact: - 2 + 2√6, - 2 - 2√6, Approximate: 2.899, -6.899.
How to find the roots of a polynomial by cancelative property
In this problem we must factorize a quadratic equation and use an algebraic property known as cancelative property, defined as:
If a · b = 0, then a = 0 or b = 0.
In addition, we can apply the following factorization rule:
x² - (r₁ + r₂) · x + r₁ · r₂ = (x - r₁) · (x - r₂)
First, factorize the quadratic equation:
x² - (- 2 + 2√6 - 2 - 2√6) · x + (- 2 + 2√6) · (- 2 - 2√6)
(x + 2 - 2√6) · (x + 2 + 2√6)
Second, apply cancelative property:
x + 2 - 2√6 = 0
x = - 2 + 2√6
x + 2 + 2√6 = 0
x = - 2 - 2√6
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4(2x – 5) = 4
Part A: How many solutions does this equation have? (4 points)
Part B: What are the solutions to this equation? Show your work.
The equation has one solution
The solution to the equation is x = 3
How to solve the equation4(2x – 5) = 4
To solve this, we would first have to open the bracket.
4 * 2x - 4*5 = 4
8x - 20 = 4
We would want to have the variable x stand on its own
so we take like terms
8x = 4 + 20
8x = 24
To get the value of x divide through the equation by 8
x = 24 / 8
x = 3
The solution is just one at x = 3
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$37 dinner; 15% tip what can I do to get the answer
Answer: $5.55
Step-by-step explanation: 15% = 0.15
37 / 0.15 = 5.55
suppose you went on a vacation in a different country and returning to your school. is the variable 'time to destination' quantitative or qualitative?
The variable 'time to destination' quantitative.
Quantitative variables are those whose values are obtained through measurement or counting. A qualitative variable, also referred to as a category variable, is a non-numerical variable. It describes information that can be categorized. Examples like Eye colors, States, Dog breeds etc.
Any variable that isn't numerical is referred to as a qualitative variable or a category variable. It describes information that falls into a category. Generally speaking, a variable is considered to be quantitative if it can be used mathematically (such as addition). Otherwise, it's top-notch. You cannot, for instance, add blue and green.
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This stuff is hard somebody help me pls
The roots of quadratic equations:
b = ± 4 a = ± 1 / 2 x = 11 / 4 ± 17 / 4 n = ± 4 x = 3 / 4 ± √(1517 / 80) x = 7 / 8 ± √(5937 / 256) k = - 7 / 10 ± √(2809 / 100) m = 3 / 2 ± √(361 / 4) n = 3 / 2 ± 4 n = 1 / 6 ± 841 / 36 p = ± 4 v = 5 / 6 ± 14 r = - 5 / 3 ± √(718 / 27) x = 11 / 10 ± √(1 / 10) n = 11 / 4 ± 13 / 4 x = ± 5How to solve quadratic numbers
In this question we need to determine sixteen cases of quadratic equations, whose roots should be determined. This can be done by following procedure:
Write the quadratic equation.Complete the square.Simplify the resulting polynomial into a perfect square trinomial.Clear the independent variable.Now we proceed to show the solution to each case:
Case 1
b² - 4 = 0
b² = 4
b = ± 4
Case 2
4 · a² - 1 = 0
4 · a² = 1
a² = 1 / 4
a = ± 1 / 2
Case 3
2 · x² = 21 + 11 · x
2 · x² - 11 · x - 21 = 0
2 · [x² - (11 / 2) · x - 21 / 2] = 0
2 · [x² - (11 / 2) · x + 121 / 16] = 2 · (121 / 16) + 2 · (21 / 2)
2 · (x - 11 / 4)² = 289 / 8
(x - 11 / 4)² = 289 / 16
x - 11 / 4 = ± 17 / 4
x = 11 / 4 ± 17 / 4
Case 4
2 · n² = 32
n² = 16
n = ± 4
Case 5
5 · x² = 3 · x + 92
5 · x² - 3 · x - 92 = 0
5 · [x² - (3 / 2) · x - 92 / 5] = 0
5 · [x² - (3 / 2) · x] = 5 · (92 / 5)
5 · [x² - (3 / 2) · x + 9 / 16] = 5 · (92 / 5 + 9 / 16)
5 · (x - 3 / 4)² = 1517 / 16
(x - 3 / 4)² = 1517 / 80
x - 3 / 4 = ± √(1517 / 80)
x = 3 / 4 ± √(1517 / 80)
Case 6
4 · x² = 7 · x + 92
4 · x² - 7 · x - 92 = 0
4 · [x² - (7 / 4) · x - 23] = 0
4 · [x² - (7 / 4) · x + 49 / 64] = 92 + 49 / 64
4 · (x - 7 / 8)² = 5937 / 64
x - 7 / 8 = ± √(5937 / 256)
x = 7 / 8 ± √(5937 / 256)
Case 7
5 · k² = - 7 · k + 138
5 · k² + 7 · k - 138 = 0
5 · [k² + (7 / 5) · k - 138 / 5] = 0
5 · [k² + (7 / 5) · k] = 5 · (138 / 5)
5 · [k² + (7 / 5) · k + 49 / 100] = 5 · (138 / 5 + 49 / 100)
5 · (k + 7 / 10)² = 2809 / 20
k + 7 / 10 = ± √(2809 / 100)
k = - 7 / 10 ± √(2809 / 100)
Case 8
m² - 88 = 3 · m
m² - 3 · m - 88 = 0
m² - 3 · m - 352 / 4 = 0
m² - 3 · m = 352 / 4
m² - 3 · m + 9 / 4 = 361 / 4
(m - 3 / 2)² = 361 / 4
m - 3 / 2 = ± √(361 / 4)
m = 3 / 2 ± √(361 / 4)
Case 9
4 · n² - 7 = 12 · n
4 · n² - 12 · n = 7
4 · (n² - 3 · n + 9 / 4) = 7 + 9
4 · (n - 3 / 2)² = 16
n - 3 / 2 = ± 4
n = 3 / 2 ± 4
Case 10
6 · n² - 2 · n = 140
6 · [n² - (1 / 3) · n] = 140
6 · [n² - (1 / 3) · n + 1 / 36] = 140 + 1 / 6
6 · (n - 1 / 6)² = 841 / 6
n - 1 / 6 = ± 841 / 36
n = 1 / 6 ± 841 / 36
Case 11
4 · p² = 64
p² = 16
p = ± 4
Case 12
6 · v² - 10 · v = 84
6 · [v² - (5 / 3) · v] = 84
6 · [v² - (5 / 3) · v + 25 / 36] = 84
6 · (v - 5 / 6)² = 84
(v - 5 / 6)² = 14
v - 5 / 6 = ± 14
v = 5 / 6 ± 14
Case 13
3 · r² - 77 = - 10 · r
3 · r² + 10 · r = 77
3 · [r² + (10 / 3) · r] = 77
3 · [r² + (10 / 3) · r + 25 / 9] = 77 + 25 / 9
3 · (r + 5 / 3)² = 718 / 9
(r + 5 / 3)² = 718 / 27
r + 5 / 3 = ± √(718 / 27)
r = - 5 / 3 ± √(718 / 27)
Case 14
5 · x² - 11 · x = - 6
5 · [x² - (11 / 5) · x + 121 / 100] = - 6 + 5 · (121 / 100)
5 · (x - 11 / 10)² = 1 / 20
(x - 11 / 10)² = 1 / 100
x - 11 / 10 = ± √(1 / 10)
x = 11 / 10 ± √(1 / 10)
Case 15
2 · n² = 11 · n + 6
2 · n² - 11 · n = 6
2 · [n² - (11 / 2) · n] = 6
2 · [n² - (11 / 2) · n + 121 / 16] = 6 + 2 · (121 / 16)
2 · (n - 11 / 4)² = 169 / 8
(n - 11 / 4)² = 169 / 16
n - 11 / 4 = ± 13 / 4
n = 11 / 4 ± 13 / 4
Case 16
4 · x² = 100
x² = 25
x = ± 5
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does anyone know how to read this I don’t know what it says
Which function has a range limited to only negative numbers?
Answer:
F(x)=-x^2
Step-by-step explanation:
The one example of function with range of only negative number is:
F(x)=-x^2
Why this? We know for every x, x^2 is positive. So -x^2 will be negative.
This is for geometry I need to know step by step appreciate it
For the given similar triangles, the value of x = 5.
What are similar triangles used for?Similar triangles share the same associated angle measurements and proportional side lengths.
Due to their similar shapes, two figures that are not always the same size can appear comparable. We might claim, for instance, that all circles are equivalent. Squares and equilateral triangles share similar characteristics. Although similar figures need not be congruent in order to be comparable, congruent figures are always comparable.
Despite having the same shape, similar triangles have different diameters. In identical triangles, corresponding angles are equal. In analogous triangles, the ratio of the corresponding sides is the same. Any pair of equivalent sides' squares and any comparable triangle's area have the same ratio.
As the given triangles are similar,
the sides are in same ratio,
⇒ 56 / 8x - 5 = 24 / 15
⇒ 8x - 5 = 35
⇒ 8x = 40
⇒ x = 5
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