The populations of Anville and Brinker will become equal in around 15.23 years.
Let's represent the current population of Anville by A and the current population of Brinker by B. Then we have:
A = 21000
B = 9000
Let t be the number of years we want to find. Then the population of Anville after t years will be:
A_t = A * (1 + 0.07)ᵗ
And the population of Brinker after t years will be:
B_t = B * (1 + 0.08)ᵗ
We want to find the value of t such that A_t = B_t. Substituting the above equations, we get:
A * (1 + 0.07)ᵗ = B * (1 + 0.08)ᵗ
Dividing both sides by A and B, respectively, we get:
(1 + 0.07)ᵗ = (1 + 0.08)ᵗ * (B/A)
Taking the natural logarithm of both sides, we get:
t * ln(1 + 0.07) = t * ln(1 + 0.08) + ln(B/A)
Simplifying and solving for t, we get:
t = ln(B/A) / (ln(1 + 0.07) - ln(1 + 0.08))
Substituting the given values of A and B, we get:
t = ln(9000/21000) / (ln(1 + 0.07) - ln(1 + 0.08)) ≈ 15.23
Therefore, it will take approximately 15.23 years for the populations of the two towns to be equal.
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Write the prime factorization of each number as a product of powers.
(a) 12^9 · 36^15 · 169^8
(b) 16^13 · 10^7 · 81^18
By answering the above question, we may state that Multiplying these equation prime factorizations together, we get:
[tex]16^13 * 10^7 * 81^18 = (2^52) * (2^7 * 5^7) * (3^72) = 2^59 * 3^72 * 5^7[/tex]
What is equation?A math equation is a mechanism for connecting two claims by using the equals sign (=) to indicate equivalence. A mathematical statement that establishes the equivalence of two mathematical expressions is known as an equation in algebra. The equal symbol, for example, splits the numbers 3x + 5 and 14. A mathematical formula can be used to describe the relationship between two phrases written on opposite sides of a letter. The logo and programme are frequently the same. 2x - 4 Equals 2, for example.
then multiply the prime factors together using the laws of exponents.
[tex]12^9 = (2^2 · 3)^9 = 2^18 · 3^9\\36^15 = (2^2 · 3^2)^15 = 2^30 · 3^30\\169^8 = 13^16\\12^9 · 36^15 · 169^8 = (2^18 · 3^9) · (2^30 · 3^30) · 13^16 = 2^48 · 3^39 · 13^16\\[/tex]
(b)
[tex]16^13 = 2^52\\10^7 = 2^7 · 5^7\\81^18 = (3^4)^18 = 3^72\\[/tex]
Multiplying these prime factorizations together, we get:
[tex]16^13 * 10^7 * 81^18 = (2^52) * (2^7 * 5^7) * (3^72) = 2^59 * 3^72 * 5^7[/tex]
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Keith earns $42.00 in 4 hours. How much would he earn in 11 hours?
Answer:
115.50
Step-by-step explanation:
Divide 42/4 to find his hourly rate, then multiply the hourly rate by 11, to get 115.50
Answer:
$115.05
Step-by-step explanation:
If he earns $42 in 4 hours than he earns $10.05 in 1 hour
42 / 4 = 10.5
10.5 x 11 = 115.5
What is the value of x?
Therefore , the solution of the given problem of triangle comes out to be x = 15 .
What is a triangle exactly?A triangular is a polygon because it has two or maybe more additional sections. It has a straightforward rectangular form. A, B, and C are the only three sides that set a triangle apart from a simple triangle. When the boundaries are not exactly collinear, Euclidean geometry results in a singular area instead of a cube. If a shape has three edges and three angles, it is said to be triangular.
Here,
Triangle ABC ,
=> x /5 = x-6/3
=> 3x = 5x - 30
=> 2x = 30
=> x = 30/2
=> x = 15
Therefore , the solution of the given problem of triangle comes out to be x = 15 .
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What type of sampling is used to conduct a study on depression among the elderly, a sample of 30 patients in one nursing home was used
The type of sampling used to conduct a study on depression among the elderly is convenience sampling, which is a type of non-probability sampling technique where samples are selected because they are conveniently available and accessible, and the sample size for this study was calculated to be 30.
The type of sampling used to conduct a study on depression among the elderly is convenience sampling. Convenience sampling is a type of non-probability non-probability where samples are selected because they are conveniently available and accessible .
In this study, a sample of 30 patients in one nursing home was used for the convenience sampling. The formula for calculating the sample size for convenience sampling is [tex]N = (N1*N2)/(N1+N2[/tex]), where N is the sample size, N1 is the population size, and N2 is the desired sample size. In this case, N1 is the total number of elderly patients in the nursing home, and N2 is 30. Therefore, the sample size for this study is calculated as follows: [tex]N = (N1*30)/(N1+30) = 30[/tex].
Convenience sampling is a quick and easy way of obtaining a sample, but it can be biased due to the presence of sampling errors and selection bias. Sampling errors occur when the sample is not representative of the overall population, while selection bias occurs when certain groups of people are more likely to be included in the sample than others. Therefore, it is important to consider the potential sources of bias when conducting a study using convenience sampling.
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Give the factors of the question above. Ex: (h-?)(h+?)
Answer:
(3h+4)(2h+3)
Step-by-step explanation:
6h^2 + 8h + 9h + 12h
(6h^2+8h) + (9h+12h)
2h(3h+4) + 3(3h+4)
(3h+4)(2h+3)
Answer:
(3h+4) (2h+3)
Step-by-step explanation:
i hope this helps
A coffe can is 8 inches high and has a diameter of 6 inches. What isvthe volume of the coffe can rounded to the nearest 10th of a decimal place
The volume of the coffee can rounded to the nearest 10th of a decimal place is 226. 08 cubic inches
How to determine the volumeIt is important to note that the coffee can takes the shape of a cylinder.
The formula for calculating the volume of a cylinder is expressed with the equation;
V = πr²h
This is so as the parameters are enumerated thus;
V is the volume of the cylinderPie (π) takes the constant value of 3.14 or 22/7r is the radius of the cylinderh is the height of the cylinderAlso, r = diameter/2 = 6/2 = 3 inches
From the information given, we have that;
Volume = 3.14 × (3)² × 8
Multiply the values
Volume = 226. 08 cubic inches
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Use the Triangle Angle Sum Theorem to find the measure of the angle on point C.
(1 point)
Answer:
m∠4 = 133°
Step-by-step explanation:
Given m∠7 = 37°
Since m∠7 ≅ m∠6 [Vertically opposite angles]
and m∠6 + m∠4 = 180° [Sum of interior angles formed by parallel lines l, m and transverse.]
Therefore, 47°+ m∠4 = 180°
m∠4 = 180 - 47
= 133°
At an ice cream shop, the cost of 4 milkshakes and 2 ice cream sundaes is $23.50. The cost of 8 milkshakes and 6 ice cream sundaes is $56.50.
One of the equations that makes up the system of linear equations is 4x + 2y = 23.50.
What is the second equation?
Answer: 8x + 6y = $56.50
Step-by-step explanation:
I think this is right!
Using Pythagoras' theorem, calculate the length of the hypotenuse in this right- angled triangle. Give your answer in centimetres (cm) to 1 d.p. 2 cm 1.5 cm
Answer:
2.5 cm
Step-by-step explanation:
In any right triangle, the formula [tex]a^2+b^2=c^2[/tex] can be used to find its side lengths.
Given the side lengths,
[tex]a = 2 \\b = 1.5\\\\2^2+1.5^2=c^2\\4+2.25=c^2\\6.25=c^2\\c=\sqrt{6.25}\\c=2.5[/tex]
What is the scale factor? x 33 km 44 km 16 km
Answer:
I hope this explains it!
Step-by-step explanation:
1. Select which conversion approach you wish to use:
a. Convert from actual (real) size to scale.
b. Convert from scale to actual (real) size.
2. Enter the scale factor; for example, if you wish to work with a 1/6th scale, input 6.
3. Enter the dimensions of the actual object (or measurements of the scaled object if you are planning on converting a scale to an actual size)
4. Select the unit of measurement from the drop-down list
5. Click on the "Convert" button to generate the results.
ackrabbits are capable of reaching speeds up to 40 miles per hour. How fast is this in feet per second? (Round to the earest whole number.)
5,280 feet = 1 mile
Answer:
Therefore, ackrabbits can reach speeds of approximately 59 feet per second.
Step-by-step explanation:
First, we need to convert miles to feet:
40 miles/hour * 5,280 feet/mile = 211,200 feet/hour
Then, we need to convert hours to seconds:
1 hour = 60 minutes/hour * 60 seconds/minute = 3,600 seconds/hour
211,200 feet/hour / 3,600 seconds/hour = 58.67 feet/second
Rounding to the nearest whole number, we get:
59 feet/second
Therefore, ackrabbits can reach speeds of approximately 59 feet per second.
Which statement correctly compares the spreads of the distributions?
A. The interquartile ranges (IQRs) are the same,
® 3. The range of team B's scores is greater than the range of team As
scores
C. The interquartile range (IQR) of team B's
scores is greater than IQR
of team A's scores.
D The interquartile range (IQR) of team As scores is greater than S IQR
of team Bs scores
After answering the provided question, we can conclude that C. The expression interquartile range (IQR) of team B's scores exceeds that of team A's scores.
what is expression ?An expression in mathematics is a collection of representations, digits, and huge corporations that represent a statistical correlation or fitness regime. A square root, a mutable, or a combo of the two can be used as an expression. Mathematical operators include addition, basic arithmetic, rapid spread, polarisation, and exponentiation. Expressions are widely used in arithmetic, mathematics, and shape. They are used in the representation of mathematical formulas, the solution of equations, and the simplification of mathematical relationships.
We can see from the box plots in the image that the box plot for team B is wider than the box plot for team A, indicating that team B has a wider range of scores. As a result, the correct statement comparing the distribution spreads is:
C. The interquartile range (IQR) of team B's scores exceeds that of team A's scores.
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A body of mass m falling through a viscous medium encounters a resisting force proportional to the square of its instantaneous velocity. In this situation the differential equation for the velocity v(t) at time t is dv CV Where k is a positive constant of proportionality. Solve the equation subject to r(0) V., what is the limiting velocity of the falling body?
The solution to the differential equation is:
$$v(t)=\frac{V_0+kCe^{-Ct}}{1+kCe^{-Ct}}$$
Where $V_0$ is the initial velocity and $C$ is the proportionality constant. The limiting velocity of the falling body as $t \to \infty$ is: $$v_{\infty}=\frac{V_0}{1+kC}$$
The instantaneous velocity of an object is the limit of the average velocity as the elapsed time approaches zero, or the derivative of x with respect to t: v ( t ) = d d t x ( t ) . v ( t ) = d d t x ( t ) . Like average velocity, instantaneous velocity is a vector with dimension of length per time.
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ion using long division or synthetic division. ks on the back to complete the story. (x^(4)+x^(3)-8x^(2)-13x-7)-:(x+2)
Using synthetic division, you can solve the following equation: (x^(4)+x^(3)-8x^(2)-13x-7)-:(x+2).
Step 1: Write down the coefficients of the polynomial in the top row of the synthetic division table.
x^(4) x^(3) -8x^(2) -13x -7
Step 2: Write the divisor in the left-most column.
x+2
Step 3: Bring down the first coefficient of the dividend and write it in the second row of the table.
x^(4) x^(3) -8x^(2) -13x -7 | x+2
x^(3) -8x^(2) -13x -7
Step 4: Multiply the divisor by the number in the second row and write it in the third row.
x^(4) x^(3) -8x^(2) -13x -7 | x+2
x^(3) -8x^(2) -13x -7 | x+2
x^(2) -15x -19
Step 5: Subtract the third row from the second row and write it in the fourth row.
x^(4) x^(3) -8x^(2) -13x -7 | x+2
x^(3) -8x^(2) -13x -7 | x+2
x^(2) -15x -19 | x+2
-7x -26
Step 6: Bring down the next coefficient in the first row and repeat steps 4 and 5.
x^(4) x^(3) -8x^(2) -13x -7 | x+2
x^(3) -8x^(2) -13x -7 | x+2
x^(2) -15x -19 | x+2
-7x -26 | -7
-22
Step 7: Multiply the divisor by the number in the fourth row and write it in the fifth row.
x^(4) x^(3) -8x^(2) -13x -7 | x+2
x^(3) -8x^(2) -13x -7 | x+2
x^(2) -15x -19 | x+2
-7x -26 | -7
-22 | -14
Step 8: Subtract the fifth row from the fourth row and write it in the sixth row.
x^(4) x^(3) -8x^(2) -13x -7 | x+2
x^(3) -8x^(2) -13x -7 | x+2
x^(2) -15x -19 | x+2
-7x -26 | -7
-22 | -14
8
Step 9: The final answer is: (x^(4)+x^(3)-8x^(2)-13x-7)/(x+2) = x^3-7x^2-15x-26 + 8/(x+2).
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Wyatt bought stock in a company two years ago that was worth x dollars. During the
first year that he owned the stock, it increased by 37%. During the second year the
value of the stock increased by 29%. Write an expression in terms of a that
represents the value of the stock after the two years have passed.
x
A
Answer:
Therefore, the expression that represents the value of the stock after the two years have passed in terms of x is:
A = 1.7673x
How precisely are stocks chosen?By dividing the number of shares they possess by the total number of outstanding shares and multiplying the result by 100, stockholders can calculate their ownership stake in a corporation.
After the first year, the value of the stock increased to:
x + 0.37x = 1.37x
After the second year, the value of the stock increased to:
1.37x + 0.29(1.37x) = 1.37x + 0.3973x = 1.7673x
Therefore, the expression that represents the value of the stock after the two years have passed in terms of x is:
A = 1.7673x
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One group of 40 students has a mean score 75in exam.A second group of 50 students has a mean score of 60.A third group of 30 students has a mean score of 85.Find the mean of all 120 stidents
Answer:73
Step-by-step explanation:
add 75 + 60 + 85 = 220
then divide to divide you need to find how much times you added then divide by 220 so 75 + 60 + 85 which is 3 times so you divide 220 by 3 and you get 73.33333333333333 or 73
The relationship between the volumes of pyramids and prisms is that when a prism and pyramid have the same base and height, the volume of the pyramid is
the volume of the prism
The relationship between the volumes of pyramids and prisms is that when a prism and pyramid have the same base and height, the volume of the pyramid is the volume of the prism. This statement is not correct.
When a pyramid and a prism have the same base and height, the volume of the pyramid is one-third ([tex]\frac{1}{3}[/tex]) the volume of the prism.
This can be seen from the formula for the volume of a rectangular prism, which is:
[tex]The volume of the prism = base area x height[/tex]
And the formula for the volume of a rectangular pyramid is:
The volume of the pyramid = [tex]\frac{1}{3}[/tex] x base area x height
Since the base area and height of the pyramid and prism are the same, we can compare their volumes by dividing the volume of the pyramid by the volume of the prism:
[tex]\frac{The volume of pyramid}{Volume of prism}[/tex] = [tex]\frac{1}{3}[/tex] x base area x height/base area x height
Simplifying this expression, we get:
[tex]\frac{The volume of pyramid}{Volume of prism}[/tex] = [tex]\frac{1}{3}[/tex]
Therefore, the volume of a pyramid with the same base and height as a prism is one-third [tex](\frac{1}{3})[/tex] the volume of the prism.
The complete question is:-
The relationship between the volumes of pyramids and prisms is that when a prism and pyramid have the same base and height, the volume of the pyramid is the volume of the prism. True/False.
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mp of a book is rs. 250 if the shopkeeper allows 14% discount to his customers and gains 25% . find the cp.
The cost price that was used to get the book is: R.S 172
How to find the cost price?The parameters given are:
Marked Price: M.P = RS. 250
Discount allowed = 10%
The formula to find the selling price here will be:
S.P = M.P * (100 - Discount)/100
Thus:
S.P = 250 * (100 - 14)/100
S.P = 250 * 0.86
S.P = R.S 215
Since the profit is 25%, then we have:
Cost Price = (S.P * 100)/(100 + Gain%)
Cost price = (215 * 100)/(100 + 25)
Cost Price = 21500/125
Cost price = R.S 172
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Four times a number is greater than -48. Define a variable, write an inequality, and solve the problem.
Answer:
n is greater than negative 12
Step-by-step explanation:
I put the answer on the attached please see it
The table above shows the changes in a country's labor force the increase in the rate of unemployment from 2000 to 2001 is between?
pleasee helppp
The increase in the rate of unemployment from 2000 to 2001, given the unemployment figure is between D. 0. 46 % and 0. 49 %.
How to find the increase in unemployment ?First, find the rate of unemployment in 2000 to be :
= Unemployment number / Total labor force x 100 %
= 3, 503, 917 / 25, 554, 417 x 100 %
= 13.71 %
The rate of unemployment in 2001 was :
= 3, 745, 300 / 26, 416, 800 x 100 %
= 14. 18 %
The increase in the rate of unemployment is:
= 14. 18 - 13. 71
= 0. 47 %
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an area rug has a length of 8 feet in the width of 5 feet. What is the diagonal distance across the rug?
We can use the Pythagorean theorem to find the diagonal distance across the rug. According to the theorem, the sum of the squares of the two shorter sides of a right triangle is equal to the square of the longest side (the hypotenuse).
In this case, the length and width of the rug form the two shorter sides of a right triangle, and the diagonal distance is the hypotenuse. So we can use the formula:
diagonal^2 = length^2 + width^2
Plugging in the values given in the problem, we get:
diagonal^2 = 8^2 + 5^2
diagonal^2 = 64 + 25
diagonal^2 = 89
To solve for the diagonal, we take the square root of both sides:
diagonal = sqrt(89)
Using a calculator, we get:
diagonal ≈ 9.43 feet
Therefore, the diagonal distance across the rug is approximately 9.43 feet.
Last week Steve spent $22 on 4 ice cream cones. This week he spent $33 on 6 ice cream cones. If each ice cream cone costs the same amount of money, what is the constant of proportionality (unit rate) between the money spent and the number of ice cream cones bought?
We may infer that the constant of proportionality (unit rate) between the amount spent and the quantity of ice cream cones purchased is $5.50 per cone because the unit rate is the same for both weeks.
The unit rate, or constant of proportionality, between the amount spent and the quantity of ice cream cones purchased is $5.50 per cone.
We divide the total sum by the quantity of cones purchased to determine the unit rate.
The unit rate for last week is: $22 x 4 cones = $5.50 per cone.
The unit price for this week is: $33 divided by six cones, or $5.50 each cone.
We may infer that the constant of proportionality (unit rate) between the amount spent and the quantity of ice cream cones purchased is $5.50 per cone because the unit rate is the same for both weeks.
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Help pleaseee struggling!
Answer: The distance from the ball to the goal is 11.86 ft.
Step-by-step explanation:
Answer:
≈ 11.9 feet
Step-by-step explanation:
The equation of the line I passing through (4, 3) and parallel to d: 4x+ 5y = 1 is l: 16x + by = c. What is the value of b?
Answer:
I guess the value be 26x
hope it helps u
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What is 1/10 the value of 6 in 46.12
Answer:
The digit 6 in 46.12 is in the tenths place. Therefore, 1/10 the value of 6 in 46.12 is simply 6/10 or 0.6.
Eli stands on the balcony of a tall building and throws a tennis ball straight up at a speed of 14 m/s. He releases the tennis ball at a height of 60m from the ground. In parts a through c, round your answer to the nearest hundredth.
A) When does the tennis ball hit the ground?
B) When does the tennis ball pass the point from which it was released?
C) What is the maximum height reached by the ball?
a) The basic formula is [tex]y=v_0t-gt^2/2[/tex]
[tex]9.81m/sec^2 x \ t^2 - (14 m/sec x t) - 60m = 0[/tex]
quadratic equation t= -b+/- √b^2-4ac /2a
t= 14+- √(-14)^2 -4(4.905)(-60)/ 2(4.905) = 5.20 sec
b) [tex]y=v_0t-gt^2/2[/tex]
At max height H, [tex]V_y = 0[/tex]
[tex]Vy^2 = V^2_{0y} - 2g(y-y_0)[/tex]
[tex]0=(14)^2 -2(9.81)(H-60)[/tex]
[tex]H=70m[/tex]
The ball would fall 10m from max height of 70m. set y=0 and H=10m
[tex]y=gt^2/2+H, t = 1.42 \ sec[/tex].
[tex]\bold{Therefore, 5.2 - 1.42 = 3.77 \ sec}[/tex]
Find the sum of the geometric series 3 + (-6) + ... + 768
The sum of the geometric series is 513.
EquationsTo find the sum of a geometric series, we use the formula:
S_n = a[tex](1-r^{n})[/tex] / (1 - r)
where S is the sum of the first n terms, a is the first term, r is the common ratio, and n is the number of terms.
In this case, we know that the first term is 3, and the common ratio is -2. To find the number of terms, we need to determine what value of n satisfies the equation:
768 = 3 x [tex](-2^{n-1} )[/tex]
We can simplify this equation by dividing both sides by 3:
256 = [tex](-2^{n-1} )[/tex]
Taking the logarithm of both sides (to base 2), we get:
n - 1 = [tex]log_{2}[/tex](256)
n - 1 = 8
n = 9
Therefore, there are 9 terms in the series for this question.
Using the formula for the sum of a geometric series, we have:
S = 3(1 - [tex](-2^{9} )[/tex] / (1 - (-2))
S = 3(1 - (-512)) / 3
S = 3(513) / 3
S = 513
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Find the value of x. I’ll give the brainliest.
Answer:
8.09017
calculations
The ratio t:m is 3:8 and the ratio m:w is 4:7. Work out the ratio t:m:w in its simplest form.
The value of the ratio t:m:w in its simplest form is 3:8:28.
Ratio Problem: Simplifying t:m:wTo simplify the ratio t:m:w, we need to find the common factor between t, m, and w.
Using the given ratios, we can write t:m:w as (3x):(8x):(28y), where x is the common factor between t and m and y is the common factor between m and w.
From the given ratio t : m = 3:8, we can say that t is equal to 3 and m is equal to 8.
Similarly, from the given ratio m:w = 4:7, we can say that m is equal to 4 and w is equal to 7.
So, we have
t : m = 3:8 and m:w = 4:7
Multuiply second by 2
t : m = 3:8 and m:w = 8:14
So, we have
t : m : w = 3 : 8 : 14
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help please i really appreciate it
Answer:
B linear
Step-by-step explanation:
If the rate of change stayed the same then it has to be a straight line so no C or D, and it cant be A be cause there is a rate of change.