assume that the box confains 11 balls: 5 red, 3 blues, and 3 yellow. as in the text, you draw one ball, note its color, and if its yellow rrplace it. if it is not yellow you do not replace it. you then draw a second ball and note its color
The probability that the second ball drawn is yellow is of:
0.2926 = 29.26%.
What is a probability?The probability of an event in an experiment is calculated as the number of desired outcomes of the experiment divided by the number of total outcomes of the experiment.
In this problem, the possible outcomes to obtain a yellow ball on the second draw are:
Yellow (3/11 probability) then yellow (3/11 probability). -> yellow on the first is replaced.Non-yellow (8/11 probability) then yellow (3/10 probability) -> non yellow on the first is not replaced.Then the probability of an yellow ball on the second draw is given as follows:
p = (3/11) x (3/11) + (8/11) x (3/10) = 0.2926 = 29.26%.
Missing InformationThe problem asks for the probability that the second ball drawn is yellow.
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David weighed himself each week and recorded a gain of 3.5 pounds, a loss of 8.6 pounds, a loss of 2.1 pounds and a gain of 1.4 pounds. What is David’s overall gain/loss of weight?
Using simple mathematical operations, David's overall loss is -5.8.
What do we mean by mathematical operations?Calculating a value while using operands as well as a math operator is known as a mathematical "operation."The supplied operands or integers must comply with a specified set of standards pertaining to the symbol of the math operator.A rule that outlines the appropriate procedures to follow when examining a mathematical equation is known as the order of operations.You can recall the PEMDAS actions parenthesis, exponents, multiplication, dividing (from Left to Right), adding, and subtracting in this order (from left to right).So, the overall gain/loss of David is:
Gain: 3.5 pounds, 1.4 poundsLoss: 8.6 pounds, 2.1 poundsNow, calculate loss/gain as follows:
3.5 + 1.4 - 8.6 - 2.14.9 - 10.7- 5.8Therefore, using simple mathematical operations, David's overall loss is -5.8.
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Select all possible solutions to the equation (x - 5)² - 6 = 0.
The two possible solutions of the given quadratic equation are -
x = +√6 +5 and x = -√6 +5
What is defined as the solution of equation?Finding the value that a variable expresses is the process of solving an equation. The solution of the equation is the value that was discovered. The collection of all values which, when substituted for unknowns, cause an equation to hold true is known as the solution. Two fundamental algebraic rules using the additive property as well as the multiplicative property are utilised to determine the solutions for equations having an unique unknown raised to a power of one.For the given question;
(x - 5)² - 6 = 0
Bring constant on other side.
(x - 5)² = 6
Taking square root both side.
√ (x - 5)² = √6
(x - 5) = ±√6
Separate the constant and variables.
x = ±√6 +5
There are two possible solution.
x = +√6 +5 and x = -√6 +5
Thus, the two possible solutions of the given quadratic equation are -
x = +√6 +5 and x = -√6 +5.
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A pet store has 7 cats. Here are their weights (in pounds).
14, 11, 10, 10, 6, 8, 14
Send data to calculator
Find the mean weight of these cats.
If necessary, round your answer to the nearest tenth.
pounds
To find the arithmetic mean (average) of a group of numbers add the numbers and divide by the total number of items we added.
(12+16+10+8+14+15)/6
= 75/6
= 12.5 (answer is already rounded to nearest tenth)
Which function represents the graph of f (x) = -3 |x| after it is translated 5 units down?
The function that represents the graph f(x) = -3|x| is f(x) = -3|x| - 5
How to find the function of the graph ?
To ascertain whether a graph accurately depicts a function, use the vertical line test. The graph is a function if a vertical line drawn across it is moved and hits it only once at any given time. If there are multiple points where the vertical line intersects the graph, the graph is not a function.
As it is already given in the question that the function
f(x) = -3|x|
We will use transformation rules to solve the given question
f(x)→f(x-a) ⇒ Graph shifted to right by a units
f(x)→f(x+a) ⇒ Graph shifted to left by a units
f(x)→f(x) - a ⇒ Graph shifted downwards by a units
f(x)→f(x) + a ⇒ Graph shifted upwards by a units
When it is translated 5 units down
Then we subtract 5 outside of the given function
∴ f(x) = -3 |x| - 5
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What happened to the native economies and cultures of Asia, Africa, and the Americas as a result of the Age of
Exploration?
They joined together to resist the attempts of Europeans to change them.
What was the Age of Exploration What major changes did it cause in the world?People have been captivated by global exploration and learning about new locations and civilizations for thousands of years. Traveling by sea was historically one of the most effective methods of globetrotting. Greeks in antiquity to medieval SpanishKings, because it provided the possibility of new business ventures and trade routes, exploration was a top priority for governments. Spanish ships, for instance, could travel to China and return with Chinese spices and silks (which were not accessible in continental Europe) to sell in Spanish marketplaces.In order to avoid deviating from their intended course, early explorers used a navigational system known as "dead reckoning," which involves calculating their position based on previous positions (such as landmasses). However, this technique may not be an exact science. Exploration became increasingly crucial as far as Europe's economic interests were concerned.Innovative tools that made exploration simpler and more accurate were created.Learn more about Age of Exploration refer to :
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student enrollment at a local school is concerning because the number of student has dropped to 504, which is 20% decrease from the previous year. what was the student enrollment the previous year?
The student enrollment the previous year is 630 students.
How to calculate the number of students?Sine the percentage given is 10% decrease, us implies that the percentage for the previous year will be x
Based on the information given, this will be illustrated as:
x - (20% × x) = 504
x - 0.2x = 504
0.8x = 504.
Divide.
x = 504 / 0.8
x = 630
There were 630 students.
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Mai has proven that triangle WYZ is congruent to triangle WYX using the Side-Side-Side Triangle Congruence Theorem. Since corresponding parts of
congruent triangles are congruent, angle ZWY is congruent to angle XWY and angle ZYW is congruent to angle XYW.
True or False: Mai can now conclude that diagonal WY bisects angles ZWX and ZYX.
True
O False
It is true, Mai can conclude that the diagonal WY bisects the angles ZWX and ZYX
Since Mai has proven triangles WYZ and WYX to be congruent by the SSS triangle Congruence Theorem, she can conclude that:
Diagonal WY bisects angles ZWX and ZYX because:
all corresponding parts of both triangles are congruent. (Option A).
If two triangles are proven to be congruent to each other, it means that all three pairs of corresponding sides and angles of both triangles are congruent and equal to each other.
Thus, since Mai has proven triangles WYZ and WYX to be congruent by the SSS Triangle Congruence Theorem, therefore, all corresponding parts of both triangles are congruent.
If this is so, then Mai can conclude that angles ZWX and ZYX are bisected by diagonal WY. (Option A is correct).
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The average weight of a population of manatees is unknown. A random sample of manatees selected from the population yields a sample mean of x¯=880.3 pounds. Assume the sampling distribution of the mean has a standard deviation of σx¯=10.4 pounds. Use the Empirical Rule to construct a 68% confidence interval for the true population mean weight.
The confidence interval that we have for the population mean is given as [869.9 , 890.7]
How to solve for the confidence intervalThe confidence interval is the range of values that, if you repeated your experiment or resampled the population in the same manner, you would anticipate your estimate to fall within a specific proportion of the time.
We have the following data that we have to solve this problem with
The mean = x¯=880.3 pounds
The standard deviation = 10.4 pounds.
The confidence interval = 68%
To get the confidence interval for the true mean of the population weight we would have
mean ± standard deviation
880.3 ± 10.4
The interval would be written out as
880.3 - 10.4 and 880.3 + 10.4
the confidence interval =
[869.9 , 890.7]
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please help and please use the diagram
7
8
9
Answer:
↓ ↓ ↓
Step-by-step explanation:
7) Name of plane to piano CIJ:-
Plane AGL8) Name a segment parallel to BC:-
FE9) Which segment is not skew to EK:-
C. CI______________________
Hope this helps!
Have a great day!
Find x in this equation.
3/8 = 15/5x - 2
Answer:
x=19/24
Step-by-step explanation:
3/8=15/5x-2
3/8= 3x -2 |*8
3=24x-16
24x=19
x=19/24
in 2017 , sharjah unfurled the worlds largest flag measuring 70m in length and 35m in width.the flag broke the guiinness world record for the largest flag hoisted on a fixed flagpole . there are 4 colours that occupy almost the same area in the flag . based on the above information , how much area will the black part occupy
Answer:
612.5
Step-by-step explanation:
Area is the length times the width
a = 70x35
a = 2450 Divide this number by 4
612.5
A die is continuously rolled until the total sum of all rolls exceeds 150 What is the probability that at least 40 rolls are necessary?
The probability that at least 40 rolls are necessary is 4/15.
What is probability?
Probability shows the likelihood of an event happening. it can be calculated by dividing the number of outcomes of an event by the total number of possible outcomes or sample space. Probability is equal to '1' when the event is certain to occur. i.e P =1. It is less than '1' when it is not likely to occur. i.e P< 1
Probability P=no. outcomes/total no. of the possible outcomes
From the question;
No of out comes=40
No. of total possible outcome=150
Therefore probability P= 40/150
P=4/15
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pls help with this . give only what it ask for the answers.
Answer:
(10, -1)
Step-by-step explanation:
x + 2x = 3x
-y + y = 0
11 + 19 = 30
3x = 30
3/3 x = 30/3
x = 10
10 - y = 11
y = -11 + 10
y = -1
What transformation takes the graph of f(z) - 4z +9 to the graph of g (z) = 4x+7?
translation 2 units right
translation 2 units left
translation 2 units down
translation 2 units up
The linear function g(z) = 4 · z + 7 is the result of applying the transformation rule g(z) = f(z) - 2 (Translation two units down) on the linear function f(z) = 4 · z + 9 . (Correct choice: C)
What transformation rule is used to transform a given function?
In this problem we find a linear function that is modified into another linear function by a transformation rule. We need to find if the function is modified by a horizontal translation, a vertical translation or a combined translation, that is, a combination of horizontal and vertical translations.
Horizontal translation
g(x) = f(x - k), where k > 0 for a translation in + x direction.
Vertical translation
g(x) = f(x) + k, where k > 0 for a translation in + y direction.
After a quick inspection, we notice that linear function f(z) = 4 · z + 9 is transformed into g(z) = 4 · z + 7 by using vertical translation 2 units down. Then, we find the following transformation formula:
g(z) = f(z) - 2
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Jeffrey earns a constant hourly rate of $12.25 at the tire shop. Which of these best represents the relationship between the number of hours Joseph worked, h, and his total amount earned, t?
Answer:
The correct equation is t = 12.25h.
Type in only your numerical answer to the given problem if G(x)=x^2-5, then g(3)=?
Use the quadratic formula to solve for the "solutions", or "zeros" of the equation. Did
you get 2 real answers, I real answer, or 2 imaginary answers?
Show your work F(x) =3x^2 - 40x + 180
We get 2 complex answers
Quadratics can be defined as a polynomial equation of a second degree, which implies that it comprises a minimum of one term that is squared.
Given that F(x) = 3x2 - 40x + 180
Set F(x) to 0, and you get ax2 + bx + c = 3x2 -40x + 180.
[-b +/- (b2 -4ac)(1/2)] is the quadratic formula. / 2a.
The stuff under the square root / radical (b2 - 4ac) is the KEY to your answer, and it determines whether you have two real, one real, or two imaginary answers. The discriminant is the term (b2 - 4ac).
Obviously, if (b2 - 4ac) > 0, you have two real answers, because the square root of a positive number is also a (positive) real number. And -b multiplied by a real number (and divided by 2a) yields two (real) answers.
If (b2 - 4ac) = 0, you have one correct answer because the square root of 0 is zero. And -b multiplied by a 0 real number (and divided by 2a) yields 1 (real) answer.
(b2 - 4ac) 0 yields two fictitious answers, because the square root of a negative number is a fictitious number. And -b multiplied by an imaginary number (and divided by 2a) yields two (complex) answers.
In this case, (b2 - 4ac) = ((-40)2 - 4(3)(180)) = 1600 - 2160 0 As a result of the discriminant is negative, the quadratic formula yields two complex answers.
Therefore we get two complex answers
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Answer:
[tex]x=\dfrac{20 +2\sqrt{35}\:i}{3}, \quad x=\dfrac{20 -2\sqrt{35}\:i}{3}[/tex]
2 imaginary answers.
Step-by-step explanation:
Given quadratic function:
[tex]f(x) =3x^2 - 40x + 180[/tex]
The zeros of a quadratic function can be found when f(x) = 0:
[tex]\implies 3x^2 - 40x + 180=0[/tex]
[tex]\boxed{\begin{minipage}{3.6 cm}\underline{Quadratic Formula}\\\\$x=\dfrac{-b \pm \sqrt{b^2-4ac}}{2a}$\\\\when $ax^2+bx+c=0$ \\\end{minipage}}[/tex]
Therefore:
a = 3b = -40c = 180Substitute the values of a, b and c into the quadratic formula and solve for x:
[tex]\implies x=\dfrac{-(-40) \pm \sqrt{(-40)^2-4(3)(180)}}{2(3)}[/tex]
[tex]\implies x=\dfrac{40 \pm \sqrt{1600-2160}}{6}[/tex]
[tex]\implies x=\dfrac{40 \pm \sqrt{-560}}{6}[/tex]
[tex]\implies x=\dfrac{40 \pm \sqrt{16 \cdot 35 \cdot -1}}{6}[/tex]
[tex]\implies x=\dfrac{40 \pm \sqrt{16}\sqrt{35}\sqrt{-1}}{6}[/tex]
[tex]\implies x=\dfrac{40 \pm 4\sqrt{35}\sqrt{-1}}{6}[/tex]
Apply the imaginary number rule [tex]\sqrt{-1}=i[/tex]:
[tex]\implies x=\dfrac{40 \pm 4\sqrt{35}\:i}{6}[/tex]
[tex]\implies x=\dfrac{20 \pm 2\sqrt{35}\:i}{3}[/tex]
Therefore, the solution is 2 imaginary answers.
Imaginary numbers
Since there is no real number that squares to produce -1, the number [tex]\sqrt{-1}[/tex] is called an imaginary number, and is represented using the letter [tex]i[/tex].
An imaginary number is written in the form [tex]bi[/tex], where [tex]b \in \mathbb{R}[/tex].
(A) find the perimeter of triangle BCF, to the nearest hundredth
(B) find the area of triangle BCF
Perimeter of triangle FBC is 19.24 units
Area of triangle FBC is 100.62 square units
Given,
The triangle with vertices;
F(-3, 5)
B(3, 2)
C(1, -2)
We have to find the perimeter and area of the triangle;
Formula for getting distance from vertices;
D = [tex]\sqrt{(x_{2} -x_{1} )^{2}+(y_{2} -y_{1} )^{2} }[/tex]
Here,
Length of FB; F(-3, 5), B(3, 2)D = [tex]\sqrt{(x_{2} -x_{1} )^{2}+(y_{2} -y_{1} )^{2} }[/tex]
= [tex]\sqrt{(3 -(-3) )^{2}+(2 -5 )^{2} }[/tex]
= [tex]\sqrt{6^{2} +(-3)^{2} }[/tex]
= [tex]\sqrt{36+9}[/tex]
= √45
Length of BC; B(3, 2), C(1, -2)D = [tex]\sqrt{(x_{2} -x_{1} )^{2}+(y_{2} -y_{1} )^{2} }[/tex]
= [tex]\sqrt{(1 -3 )^{2}+(-2-2)^{2} }[/tex]
= [tex]\sqrt{(-2)^{2} +(-4)^{2} }[/tex]
= [tex]\sqrt{4+16}[/tex]
= √20
Length of FC; F(-3, 5), C(1, -2)D = [tex]\sqrt{(x_{2} -x_{1} )^{2}+(y_{2} -y_{1} )^{2} }[/tex]
= [tex]\sqrt{(1-(-3) )^{2}+(-2 -5)^{2} }[/tex]
= [tex]\sqrt{4^{2}+(-7)^{2} }[/tex]
= [tex]\sqrt{16+49}[/tex]
= √65
That is,
Length of side FB = √45 unitsLength of side BC = √20 unitsLength of side FC = √65 unitsNow,
Perimeter of triangle FBC = FB + BC + FC
= √45 + √20 + √65
= 19.24 units
Next,
Area of triangle FBC = 1/2 × BC × FB²
= 1/2 × √20 × √45²
= 100.62 square units.
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Evaluate (6x+3y)-z^(2)÷(2x) when x=-3,y=4,z=-6
24.
Step-by-step explanation:1. Write the expression.[tex](6x+3y)-\frac{z^{2}}{(2x)}[/tex]
2. Substitute the variables by the respective given value using parenthesis.[tex](6(3)+3(4))-\frac{(6)^{2}}{(2(3))}[/tex]
3. Simplify the expression by applying the hierarchy or mathematical operations.a) Solve parenthesis.
[tex](18+12)-\frac{(6)^{2}}{6}\\ \\30-\frac{(6)^{2}}{6}[/tex]
b) Solve the exponent.
[tex]30-\frac{36}{6}[/tex]
c) Divide.
[tex]30-6[/tex]
d) Subtract.
[tex]24.[/tex]
Edgar accumulated $5,000 in credit card debt. If the interest rate is 20% per year and he does not make any payments for 2 years, how much will he owe on this debt in 2 years with monthly compounding?
Round your answer to the nearest cent.
Do NOT round until you calculate the final answer
Correct answer: $7,434.57
Answer:
amount owed = $7434.57
Step-by-step explanation:
To solve this problem, we have to use the following formula:
[tex]\boxed{A = P(1 + \frac{r}{n})^{nt}}[/tex],
where:
• A = final amount
• P = principal (initial) amount
• r = annual interest rate
• n = amount of times the interest is compounded per time period
• t = number of years the money is kept for
In this case, the principal amount, P = $5000 and the money is owed for two years, so t = 2. The annual interest rate, r = 0.20 (20% = [tex]\frac{20}{100}[/tex] = 0.2). The interest is compounded monthly, which means it is compounded 12 times per year. Therefore, n = 12.
Using the above information and formula, we can calculate the amount owed after 2 years:
[tex]A=P(1+\frac{r}{n})^{nt}[/tex]
[tex]= 5000(1 + \frac{0.2}{12})^{12 \times 2}[/tex]
[tex]=[/tex] $7434.57
Therefore, the amount Edgar owes after 2 years is $7434.57.
The municipal swimming pool in Charlotte, North Carolina has three different ways of paying for individual open swimming. Nick is trying to decide which way to pay.
Early Pay: Pay $110.00 before Memorial Day; swim any number of days
Deposit Plus: $30.00 deposit plus $6.00 per day
Daily Pay: $9.00 per day
Write an equation for each method of payment. Write your equations in slope-intercept form so that x is the number of days and y is the cost.
a. Early Pay:
b. Deposit Plus:
c. Daily Pay:
the answer must be a y=mx+b equation for a b and c
The equations for early pay, deposit plus and daily pay is y = 110, y = 6x + 30 and y = 9x respectively.
What is an equation?An equation is an expression showing the relationship between two or more numbers and variables.
Let y represent the total cost for swimming x numbers of days.
Early Pay: Pay $110.00 before Memorial Day; swim any number of days. Hence:
y = 110
Deposit Plus: $30.00 deposit plus $6.00 per day. Hence:
y = 6x + 30
Daily Pay: $9.00 per day. Hence:
y = 9x
The equation for early pay is y = 110
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Find the scale of a map if 4.2 cm on the map corresponds to an actual distance of 6.3 km.
Answer:
Scale of the map is 1 cm corresponds to an actual distance of 1.5 km
Step-by-step explanation:
According to the question,
4.2 cm on the map corresponds to an actual distance of 6.3 km.
So,
[tex] \rm 1 \: cm \: will \: correspond \\ \rm to \: a \: distance= \dfrac{6.3}{4.2} \: km \\ \rm = 1.5 \: km[/tex]
Scale of the map is represented by 1 cm corresponds to an actual distance of 1.5 km
What is the scale factor?The scale factor states the scale or measurement by which a figure is bigger or smaller than the other figure. The size by which the figure would be reduced or enlarged is called its scale factor.
According to the question we are given that 4.2 cm on the map corresponds to an actual distance of 6.3 km.
Similarly on the map, 4.2 cm corresponds to an actual value of 6.2km distance, this means
Thus 6.2km is the same as (6.2×1000)m = 6200m
therefore, the scale of the map is
= 4.2/6200
= 1/1476.2
that is, 1cm : 1476.2 cm
= 1cm: 1.5km
Scale of the map is represented by 1 cm corresponds to an actual distance of 1.5 km
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A bank representative studies compound interest, so she can better serve customers. She analyzes what happens when $2,000 earns
interest several different ways at a rate of 4% for 3 years.
Find the interest if it is computed using simple interest.
Find the interest if it is compounded annually.
Find the interest if it is compounded semiannually,
Find the interest if it is compounded quarterly.
Find the interest if it is compounded monthly.
Find the interest if it is compounded daily.
Find the interest if it is compounded hourly.
Find the interest if it is compounded every minute.
Find the interest if it is compounded continuously.
What is the difference in interest between simple interest and interest compounded continuously?
1) The interest if it is compounded using simple interest is $240
2) The interest if it is compounded annually is $249.73
3) The interest if it is compounded semiannually is $252.325
4) The interest if it is compounded quarterly is $253.650
5) The interest if it is compounded monthly is $254.543
6) The interest if it is compounded daily is $254.978
7) The interest if it is compounded hourly is $254.993
8) The interest if it is compounded every minute is $254.993
9) The interest if it is compounded continuously is $254.993
10) The difference in interest between simple interest and interest compounded continuously is $14.993
What is meant by compound interest?Compound interest is the addition of interest to the principal sum of a loan or deposit, or interest on interest plus interest.
Given, P=2000
r=4%
r=4/100
r=0.04
t=3 years
1) Simple interest⇒ A=P(1+rt)
=2000(1+3(0.04)
=2000(1+0.12)
=2240
S.I= 2240-2000
S.I=$240
2) Compound interest(yearly)
1st year= 2000(4/100)=80
2nd year=2080(4/100)=83.2
3rd year=(2080+83.2)(4/100)=86.528
P=2163.2+86.528
P=2249.728
C.I=2249.728-2000
C.I=249.728≈$249.73
3) Compounded semiannually
A= P(1+(R/200))²ⁿ
A=2000(1+(4/200))⁶
A=2000(1.12616)
A=2252.325
C.I= 2252.325-2000
C.I=$252.325
4) Compounded quarterly
A=P(1+(R/400))⁴ⁿ
A=2000(1+(4/400))¹²
A=2253.650
C.I=2253.650-2000
C.I=$253.650
5) Compounded monthly
A=P(1+(R/1200))³⁶
A=2000(1+(4/1200))³⁶
A=2254.543
C.I= 2254.543-2000
C.I=$254.543
6) Compounded daily
A=P(1+(R/36500))³⁶⁵ⁿ
A=2000(1+(4/36500))¹⁰⁹⁵
A=2254.978
C.I=2254.978-2000
C.I=$254.978
7) Compounded hourly
A=P(1+(R/876000))²⁶²⁸⁰
A=P(1+(4/876000))²⁶²⁸⁰
A=2254.993
C.I=2254.993-2000
C.I=$254.993
8) Compounded every minute
A=P(1+(R/52560000))¹⁵⁷⁶⁸⁰⁰
A=P(1+(4/52560000))¹⁵⁷⁶⁸⁰⁰
A=2254.993
C.I=2254.993-2000
C.I=$254.993
9) Compounded continuously
A= [tex]Pe^{rt}[/tex]
A=2000([tex]e^{0.04*3}[/tex])
A=2254.993
C.I=2254.993-2000
C.I=$254.993
10) The difference in interest between simple interest and interest compounded continuously is
254.993-$240=$14.993
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If you make $4 on a sale of one share of stock that you bought for $22, what is your ROI?
Answer:
$26
Step-by-step explanation:
Louie is studying ceramics, and he was asked to submit 5 vessels from his collection to exhibit at the fair. He has 15 vessels that he thinks are show worthy. In how many ways can the vessels be chosen?
Louie can choose the vessel for exhibition using combination in 3003 ways
How to determine the number of Louie can choose the ceramicinformation from the question include
Louie is studying ceramics and he is to submit 5 vessels
He has 15 vessels
The problem will be solved using combination
combination is method of choosing or making selection when order does not matter
Louie can choose any 5 of his vessel with no particular order
The formula is ₁₅C₅
₁₅C₅ = 15! / {5!(15 - 5)! )
= 15! / {5! * 10!}
= 3003 ways
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Write an equation of the parabola in vertex form.
Amusement Park Ride
Height (feet)
YA(0, 180)
(1, 164)
160
80
0 2 4
Time (seconds)
Equation:
Equation of parabola in vertex form is :
[tex](x-h)^{2} = 4a(y-k)[/tex]
[tex](x-0)^{2} = 4a(y-180)[/tex]
it passing through (1,164)
∴ [tex](1-0)^2=4a(164-180)[/tex]
[tex]1 = 4a(-16)[/tex]
⇒ [tex]-64a = 1[/tex]
⇒ [tex]a = -\frac{1}{64}[/tex]
∴ [tex](x-0)^2 = 4 \times \frac{1}{-64} (y-180)[/tex]
[tex]x^2 = -\frac{1}{16}(y-180)[/tex]
[tex]-16x^2 = y-180\\y = -16x^2+180\\[/tex]
Here, the equation of parabola in vertex form is:
[tex]y = -16(x^2)+180 ,\ for \ x\geq 0[/tex]
What is Parabola?
A curve formed by the intersection of a cone with a plane parallel to a straight line in its surface.
What is cone?
A cone is a three-dimensional shape in geometry that narrows smoothly from a flat base (usually circular base) to a point(which forms an axis to the Centre of base) called the apex or vertex.
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Evaluate this expression. (6x103) ÷ (3x102) express your answer in scientific notation.
9514 1404 393
Answer:
2×10¹
Step-by-step explanation:
For division, mantissas divide, and exponents subtract.
Answer:
2*10^1
Step-by-step explanation:
Process
When you divide powers, they can be subtracted -- numerator - denominator in powers
The numbers divide the way you normally would if the question is 6/3 = 2
Numerator power = 3
denominator power = 2
Solution
6*10^3/ 3*10^2 = (6/3) * 10^(3 -2) = 2 * 10^1 = 20
20 = 2 * 10^1
Finding missing side length given two similar triangles
Value of BC is 36 in triangle's similarity .
What is the triangle's similarity?
If one of the following conditions is satisfied by two triangles, they are comparable. There is equality between two sets of matching angles. It is proportionate to have three sets of comparable sides. In addition to being proportional and having equal corresponding angles, two pairs of corresponding sides are also identical.ΔABC and ΔPQR are similar .
so all sides are equal in ratio .
let BC is x .
AB/BC = PQ/QR
18/x = 2/4
18 * 4 = 2 * x
x = 18 * 4/2
x = 18 * 2
x = 36
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1) While mining, Peter found a large metal bar that contained 33 grams of gold. Peter also
determined that the bar was 73.33% gold. What was the total weight of the metal bar in
grams? Round your answer to the nearest whole number if necessary.
The total weight of the metal bar is 45.002 grams.
Given:
While mining, Peter found a large metal bar that contained 33 grams of gold.
Peter also determined that the bar was 73.33% gold.
73.33% = 33 grams
divide by 73.33 on both sides
73.33%/73.33 = 33/73.33 grams
1% = 0.45002 grams
Multiply on 100 on both sides
1%*100 = 0.45002*100
100% = 45.002 grams.
Therefore the total weight of the metal bar is 45.002 grams.
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