We would apply the formula for exponential growth which is expressed as
A = P(1 + r)^t
where
A is the population after t years
P is the initial population
r is the interest rate
t is the number of years
From the information given,
P = 320000
r = 4.75% = 4.75/100 = 0.0475
t = 15
By substituting the values into the formula, we have
A = 320000(1 + 0.0475)^15
A = 320000(1.0475)^15
A = 641890
The population after 15 years is 641890
Graph the solution to this inequality on the number line.
2x – 6 > -16 and 3x – 10 < 8
Answer:
2x-6=-16 and 3x- 10=8
Step-by-step explanation:
2x=-16+6 and 3x=8+10
2x=-10 and 3x=18
2x/2=10/2 and 3x/3=18/3
x=5 and X=6
graph the line with -2 and y intercept -5, can you show me on a graph please
Find the area of the shaded portion in the equilateral triangle with sides 6. Show all work for full credit.
(Hint: Assume that the central point of each arc is its corresponding vertex.)
The area of the shaded portion in the equilateral triangle with sides 6 is 9√3 - 36π.
To find the area of the shaded portion in the equilateral triangle, we need to determine the area of the three arcs and subtract it from the area of the equilateral triangle.
First, let's find the area of one arc. Each arc has a radius equal to the length of the side of the equilateral triangle, which is 6. The formula for the area of a sector is A = (θ/360)πr², where θ is the central angle in degrees.
In an equilateral triangle, each interior angle measures 60 degrees, so the central angle of the arc is 120 degrees (360 degrees divided by 3). Plugging these values into the formula, we get A_arc = (120/360)π(6)² = (1/3)π(6)² = 12π.
Since there are three identical arcs, the total area of the arcs is 3 times the area of one arc, which is 3(12π) = 36π.
Now, let's find the area of the equilateral triangle. The formula for the area of an equilateral triangle is A_triangle = (√3/4)s², where s is the length of a side.
Plugging in the value of the side length, we have A_triangle = (√3/4)(6)² = (√3/4)(36) = 9√3.
Finally, we subtract the area of the arcs from the area of the equilateral triangle to find the shaded portion's area: A_shaded = A_triangle - A_arc = 9√3 - 36π.
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I need help? if someone could please help me that would be awesome.
Answer:
35 millimeters
Step-by-step explanation:
1.4 inches * 1millimeters / 0.04inches = 35 millimeters
use this equation:
starting units * desired units / starting units = desired units
The staff at an advertising company took a survey of 350 people, each of
whom had visited one of two branches, East and West, of a store. Each
person surveyed was asked whether he or she had purchased a certain
product within the past month. The results of the survey, by location, are
shown in the table.
7/12 of the people who visited the West branch of the store indicated that they had not purchased the product.
Out of the 168 people who visited the West branch of the store,
98 indicated that they had not purchased the product.
Therefore, the fraction of people who visited the West branch and had not purchased the product is:
98/168
Simplifying this fraction by dividing the numerator and denominator by 14, we get:
7/12
Hence, 7/12 of the people who visited the West branch of the store indicated that they had not purchased the product.
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5x + 3x = 5x + 6 What value of 3x makes the equation true?
Answer:
-45 (9x-20) - 3x = 45x-6
-405x+900-3x = 45x-6
-408x+900 = 45x-6 (combine like terms)
906=453x (add 6 to 900 and - 408x to 45x)
2=x (divided )
X=2
Step-by-step explanation: I hope this helps.
What is the equation of the line of symmetry for the parabola represented by the equation
y = –22 + 2x + 6?
Answer:
a
Step-by-step explanation:
The distance you travel while hiking is a function of how fast you hike and how long you hike at this rate. You usually
maintain a speed of three miles per hour while hiking. Write a statement that describes how the distance that you travel is
determined. Then identify the independent and dependent variables of this function.
a The distance traveled is three times the number of hours I have hiked. The independent variable
b. The distance traveled is three times the number of hours I have hiked. The independent variable
c. The hours I have hiked is three times the distance. The independent variable is distance. The
d. The hours I have hiked is three times the distance. The independent variable is hours. The
is hours. The dependent variable is distance.
is distance. The dependent variable is hours.
dependent variable is hours.
dependent variable is distance.
Please select the best answer from the choices provided
Answer:
If hours is represented as h, your distance is therefore 3*h (due to that for every hour, you walk 3 miles. For example, in one hour you'd walk 3 miles, in 2 hours you'd walk 3+3=3*2=6 miles,etc.). If distance is represented by d, we get 3*h=d. Since you have to figure out the distance from the equation (that's the purpose of it!), the distance is the dependent variable. In addition, since you can't have 2 separate variables in one equation, h is the independent variable due to that you have to put a number for h in to figure out the distance
So basically the answer is A.
f (x)=12x^-10
is this functions a power function, polynomial function or neither?
It is not a polynomial function because polynomial functions have non-negative integer exponents, and the exponent in this function is -10, which is a negative integer.
The function f(x)=12x^-10 is a power function because it can be written in the form f(x)=kx^n where n is a negative integer. Specifically, this function can be written as f(x)=12/x^10.
Function f(x) = 12x^(-10), this function is a power function.
A power function has the form f(x) = kx^n, where k and n are constants. In this case, k = 12 and n = -10. Since the function fits the power function definition, it is a power function.
It is not a polynomial function because polynomial functions have non-negative integer exponents, and the exponent in this function is -10, which is a negative integer.
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Which expression is equivalent to
45x+115?
A. 15(4x+1)
B. 25(2x+3)
C. 45(x+2)
D. 54(x+1)
Answer:
5(9x+23)
Step-by-step explanation:
45x+115
5(9x+23)
factorise x³-4x²+x+6
The binomial factors of x³- 4x²+x+6 are (x+2), (x+3), and (x-1).
Using the splitting and grouping the terms:
x³ + 4x² + x - 6
= x³ + 2x² + 2x² + x - 6 [Splitting 4x² = 2x² + 2x²]
= (x³ + 2x²) + (2x² + x - 6)
= x² (x + 2) + (2x² + 4x - 3x - 6)
= x² (x + 2) + [ 2x (x + 2) - 3 (x + 2)]
= x² (x + 2) + (x + 2) (2x - 3)
= (x + 2) ( x² + 2x - 3)
= (x + 2) ( x² + 3x - x - 3)
= (x + 2) [x (x + 3) - 1 (x + 3)]
= (x + 2) (x + 3) (x - 1)
Hence, the binomial factors are (x + 2), (x + 3) and (x - 1)
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Say that a woman and a man (who are unrelated) each has two children. We know that at least one of the woman's children is a boy and that the man's oldest child is a boy. Can you explain why the chances that the woman has two boys do not equal the chances that the man has two boys?My algebra teacher insists that the probability is greater that the man has two boys, but I think the chances may be the same. What do you think?
Therefore, the probability that a woman will give birth to two boys is only one in three, whereas the probability that a man will do so is one in two.
What is probability?The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.
Here,
The woman may have at least one boy in the three following ways: 1) older boy, younger girl; 2) older girl younger boy; 3) older boy, younger boy.
But the man's children may be distributed in only two ways: 1) older boy, younger girl; or 2) older boy, younger boy.
So the chances are only 1 out of 3 that the woman has two boys, but the chances are 1 out of 2 that the man has two boys.
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13.6.4 Quiz: The Quadratic Formula
Which two values of x are roots of the polynomial below?
x²-3x+5
O A. X=3--11
x3
O B. X=-3-17
I c. x= -3+
-3+ VTT
I D. X=
3-√23
Ex=
3+ -11
DEX=
3+29
Please help I'll give the best answers Brainly
Answer:
a: x = -4
b: x = 4
c: y = 4
d: y = -2
e: y = -3/4x + 1
Step-by-step explanation:
Evaluate the expression if a equals two and be equal six
Answer:
guess
Step-by-step explanation:
i ain't going to cap but idk
Please help, thanks!
Would you define the center of the line by finding the point at which half the people in the line are on one side and half are on the other (see Figure B)? Is the center based on the length of the line even though there would be more people on one side of the center than on the other (see Figure C)? Would you place the center among the largest groups of people (see Figure D)? The answer would depend on what you needed the center for. When working with data, you need different measures for different purposes.
The centre of the line is 50 , which is figure C.
Divide. Write Divide. Write your answer in simplest form. −7/5÷1/5=?
\( \frac{ - 7}{5} \div \frac{1}{5} \\ = \frac{ - 7}{5} \times \frac{5}{1} \\ = \frac{ - 7}{1} \times \frac{1}{1} \\ = \frac{ - 7}{1} \\ = - 7\)
This is the answer.
Answer:
- 7
Step-by-step explanation:
- \(\frac{7}{5}\) ÷ \(\frac{1}{5}\)
Leave the first fraction, change division to multiplication and turn the second fraction upside down.
- \(\frac{7}{5}\) × \(\frac{5}{1}\) ← cancel 5 on numerator and denominator
= - 7 × 1
= - 7
..................................................
Answer: ..........................................
Step-by-step explanation: I dunno what that means, be specific!
(q14) Ron is studying the income of people in a particular state. He finds out that the Lorenz curve for that state can be given as L(p)=p^4/3. Find the gini coefficient.
The Gini coefficient is 2(−13/30) = -13/15.
The Lorenz curve L(p) can be expressed as the cumulative distribution function of a random variable X. The Gini coefficient is then given by the area between the diagonal line (representing perfect equality) and the Lorenz curve L(p).
In other words, the Gini coefficient is the ratio of the area between the diagonal line and the Lorenz curve to the total area under the diagonal line.
The Lorenz curve for the state can be given as L(p)=p^4/3.Ron can compute the Gini coefficient by finding the area between the diagonal line and the Lorenz curve.
The diagonal line goes from (0,0) to (1,1).The area under the diagonal line is 1/2.
The area between the diagonal line and the Lorenz curve is given by∫[0,1](L(p)−p)dp=
∫[0,1](p^4/3−p)dp
=(1/15)−(1/2)
= -13/30
The Gini coefficient can be negative when the Lorenz curve lies above the diagonal line, which indicates that the distribution is more equal than the hypothetical distribution of perfect equality.
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Show your work please help me it’s due tomorrow!!!!
Answer: Consider me the brainiest. The answer is... Decimal form =4.083
Exact form= 49/12
The mixed number form=4 1/12
How do we solve fractions step by step?
Conversion a mixed number 2 1/3 to a improper fraction: 2 1/3 = 2 1/3 = 2 3 + 1/3 = 6 + 1/3 = 7/3
To find a new numerator
A; Multiply the whole number 2 by the denominator 3. Whole number 2 equally 2 * 3/3 = 6/3
b) Add the answer from the previous step 6 to the numerator 1. The new numerator is 6 + 1 = 7
c) Write a previous answer (new numerator 7) over the denominator 3.
Two and one-third are seven-thirds.
Conversion a mixed number 1 3/4 to a improper fraction: 1 3/4 = 1 3/4 = 1 · 4 + 3/4 = 4 + 3/4 = 7/4
To find a new numerator:
a) Multiply the whole number 1 by the denominator 4. Whole number 1 equally 1 * 4/4 = 4/4
b) Add the answer from the previous step 4 to the numerator 3. The new numerator is 4 + 3 = 7
c) Write a previous answer (new numerator 7) over the denominator 4. One and three quarters are seven quarters.
Add: 7/3 + 7/4 = 7 · 4/3 · 4 + 7 · 3/4 · 3 = 28/12 + 21/12 = 28 + 21/12 = 49/12 It
is suitable to adjust both fractions to a common (equal, identical) denominator for adding, subtracting, and comparing fractions. The common denominator you can calculate as the least common multiple of both denominators - LCM(3, 4) = 12. It is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 3 × 4 = 12. In the following intermediate step, it cannot further simplify the fraction result by cancelling. In other words - seven thirds plus seven quarters is forty-nine twelfths.
Can anyone help me out with this answer
Answer:
D.
Step-by-step explanation:
at + ab = c
subtract ab from both sides
at= c - ab
divide a from both sides
t = c - ab/a
please answer this question
Answer:
\(\displaystyle \int {x^{-11}(1 + x^4)^\Big{- \frac{1}{2}}} \, dx = \boxed{ - \frac{\sqrt{x^4 + 1} (8x^8 - 4x^4 + 3)}{30x^{10}} + C }\)
General Formulas and Concepts:
Calculus
Differentiation
DerivativesDerivative NotationDerivative Rule [Basic Power Rule]:
f(x) = cxⁿf’(x) = c·nxⁿ⁻¹Integration
IntegralsIntegration Rule [Reverse Power Rule]:
\(\displaystyle \int {x^n} \, dx = \frac{x^{n + 1}}{n + 1} + C\)
Integration Property [Multiplied Constant]:
\(\displaystyle \int {cf(x)} \, dx = c \int {f(x)} \, dx\)
Integration Property [Addition/Subtraction]:
\(\displaystyle \int {[f(x) \pm g(x)]} \, dx = \int {f(x)} \, dx \pm \int {g(x)} \, dx\)
Integration Methods: U-Substitution, U-Solve, Trigonometric Substitution
Step-by-step explanation:
*Note:
The problem is too big to fit all work. I will assume that you know how to do basic calculus.
Step 1: Define
Identify given.
\(\displaystyle \int {x^{-11}(1 + x^4)^\Big{- \frac{1}{2}}} \, dx\)
Step 2: Integrate Pt. 1
[Integrand] Rewrite:Step 3: Integrate Pt. 2
Identify variables for u-substitution/u-solve.
Set u:Step 4: Integrate Pt. 3
Start solving the integral using u-solve:
\(\displaystyle \begin{aligned}\int {x^{-11}(1 + x^4)^\Big{- \frac{1}{2}}} \, dx & = \int {\frac{1}{x^{11}\sqrt{x^4 + 1}}} \, dx \\& = \int {\frac{1}{2u^6 \sqrt{u^2 + 1}}} \, du \\& = \frac{1}{2} \int {\frac{1}{u^6 \sqrt{u^2 + 1}}} \, du \\\end{aligned}\)
Step 5: Integrate Pt. 4
Identify variables for trigonometric substitution.
Set u:Step 6: Integrate Pt. 5
Let's focus on just the integral itself. Apply the Trigonometric Substitution Integration Method and other basic integration techniques listed under "Calculus":
\(\displaystyle \begin{aligned}\int {\frac{1}{u^6 \sqrt{u^2 + 1} }} \, du & = \int {\frac{\sec^2 v}{\tan^6 v \sqrt{\tan^2 v + 1} }} \, dv \\& = \int {\frac{\sec v}{\tan^6 v}} \, dv \\& = \int {\cot v \csc v (\csc^2 v - 1)^2} \, dv \\\end{aligned}\)
Step 7: Integrate Pt. 6
Identify variables for u-substitution/u-solve again.
Use another variable besides u to avoid confusion with earlier substitutions:
Set w:Step 8: Integrate Pt. 7
Reduce the integral using the U-Solve Integration Method and other basic integration techniques listed under "Calculus":
\(\displaystyle \begin{aligned}\int {\frac{1}{u^6 \sqrt{u^2 + 1} }} \, du & = \int {\frac{\sec^2 v}{\tan^6 v \sqrt{\tan^2 v + 1} }} \, dv \\& = \int {\frac{\sec v}{\tan^6 v}} \, dv \\& = \int {\cot v \csc v (\csc^2 v - 1)^2} \, dv \\& = \int {-(w^2 - 1)^2} \, dw \\& = - \int {(w^2 - 1)^2} \, dw \\& = - \int {\bigg( w^4 - 2w^2 + 1 \bigg)} \, dw \\\end{aligned}\)
Step 9: Integrate Pt. 8
Solve the integral using basic integration techniques listed under "Calculus":
\(\displaystyle\begin{aligned}- \int {\bigg( w^4 - 2w^2 + 1 \bigg)} \, dw & = - \Bigg[ \int {w^4} \, dx - \int {2w^2} \, dx + \int {} \, dx \Bigg] \\& = - \Bigg[ \int {w^4} \, dx - 2 \int {w^2} \, dx + \int {} \, dx \Bigg] \\& = - \Bigg[ \frac{w^5}{5} - \frac{2w^3}{3} + w + C \Bigg] \\& = - \frac{w^5}{5} + \frac{2w^3}{3} - w + C \\& = - \frac{\csc^5 v}{5} + \frac{2\csc^3 v}{3} - \csc v + C \\\end{aligned}\)
\(\displaystyle\begin{aligned}- \int {\bigg( w^4 - 2w^2 + 1 \bigg)} \, dw & = - \frac{(u^2 + 1)^\Big{\frac{5}{2}}}{5u^5} + \frac{2(u^2 + 1)^\Big{\frac{3}{2}}}{3u^3} - \frac{\sqrt{u^2 + 1}}{u} + C \\\end{aligned}\)
Step 10: Integrate Pt. 9
Let's substitute our integral value into our integral from "Step 4":
\(\displaystyle\begin{aligned}\frac{1}{2} \int {\frac{1}{u^6 \sqrt{u^2 + 1}}} \, du & = - \frac{(u^2 + 1)^\Big{\frac{5}{2}}}{10u^5} + \frac{(u^2 + 1)^\Big{\frac{3}{2}}}{3u^3} - \frac{\sqrt{u^2 + 1}}{2u} + C \\& = - \frac{(x^4 + 1)^\Big{\frac{5}{2}}}{10x^{10}} + \frac{(x^4 + 1)^\Big{\frac{3}{2}}}{3x^6} - \frac{\sqrt{x^4 + 1}}{2x^2} + C \\& = \boxed{ - \frac{\sqrt{x^4 + 1}(8x^8 - 4x^4 + 3)}{30x^{10}} + C } \\\end{aligned}\)
∴ we have found the indefinite integral.
___
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Topic: Calculus
7th grade math help me pleaseee
Answer:
Step-by-step explanation:
we will convert these all into percents since when you grade you get a percent
so 82%
1. 17/20 WHAT YOU DO IS & YOU DIVIDE 17 BY 20 you get 85%
2. 21/25 same thing we are going to DIVIDE 21 BY 25 and you get 84%
3. 0.8 since this is out of 100 you are going to move the decimal twice to the right because there are TWO ZEROS in a hundred so it would be 80% or you can multiply by 10
so the highest score would be 17/20
pls mark me brainliest
compare1/2 with 3/4 using (<>=)
Answer: 3/4 is greater than 1/2
>
Step-by-step explanation:
Solve for x.
Show work
Answer:
x=11.34
Step-by-step explanation:
Michael saw a pair of jeans that he really wants to buy. The price of the jeans is $25.60. He saw that they go on sale for weekend and will be 15% off. How much will he save?
Answer:
$21.76
Step-by-step explanation:
15% of $25.60= $3.84
$25.60-$3.84= $21.76
If you flip two coins 68 times, what is the best prediction possible for the number of times both coins will land on heads?the number of times it will land on tails?
If you flip two coins 68 times, the best prediction for the number of times both coins will land on heads is 17.
If you flip two coins 68 times, the best prediction for the number of times both coins will land on tails is 17.
What is the probability of getting two heads?The possible outcomes when two coins are flipped are;
head - head = HH
tail - tail = TT
Head and tail = HT
Tail and head = TH
The probability of getting two heads = 1/4
If you flip two coins 68 times, the best prediction for the number of times both coins will land on heads is calculated as;
Expected value = (68 flips) x (1/4 probability of getting HH) = 17
The probability of getting two tails = 1/4
Expected value = 68 x 1/4 = 17
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Reread the three paragraphs that begin at the top of page 2 and end on page 3. How does the flashback in these paragraphs advance the plot
The way the flashback in these paragraphs advance the plot is C. It introduces Evan's motivation for working in the garden with Grandfather.
What is Flashback Narrative?The technique of flashback in storytelling involves interrupting the chronological order of events to depict an earlier event or scene. It uses time travel to furnish the audience with necessary backstory, context, or a deeper understanding of the characters.
The technique of flashbacks is frequently employed as a means of divulging previous occurrences, recollections, or incidents that hold significance to the present narrative being conveyed.
Hence, it can be seen from the given text that the use of flashback helps show the motivation which Evans had for working in the garden with Grandfather
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The tangent line to a certain curve at any point P(x,y) has an x-intercept equal to 1/2 x. This curve passes through the point (1,2). Find the equation of this curve. Do not leave any ln's (logarithms) in your answer.
The tangent line to a certain curve at any point P(x,y) has an x-intercept equal to 1/2 x. So the equation of this curve is 2y = x + 3.
The x intercept is 1/2 x so taking the derivative we get slope as ,
d(1/2x) = 1/2
M = 1/2
using the formula,
(y - y1) = m( x -x1)
y - 2 = 1/2 (x - 1)
2y = x + 3
Therefore equation of this curve is 2y = x + 3.
In geometry, a tangent line is a straight line that most closely resembles (or "clings to") a curve at a certain location. It might be thought of as the limiting position of straight lines that pass between the specified point and a neighboring curve point as the second point gets closer to the first.
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