Suppose that $20,000 is invested at 9% interest, compounded annually. After time t, in years, it grows to the amount A given by the function A(t) = $20,000(1.09)
a) Find the amount of time after which there will be $200,000 in the account.
b) Find the doubling time.
After what amount of time will there be $200,000 in the account?

Answers

Answer 1

Answer:

Years = {log(total) -log(Principal)} ÷ log(1 + rate)

Years = [log (200,000) -log (20,000)] / log (1.09)

Years = [5.3010299957 -4.3010299957] /  0.037426497941

Years = 1 / 0.037426497941

Years = 26.7190374471

*************************************************

Finding Doubling Time : (We'll calculate $100 becoming $200)

Years = {log(total) -log(Principal)} ÷ log(1 + rate)

Years = log (200) -log (100) / log(1.09)

Years =  (2.3010299957 -2) / 0.037426497941

Years = .3010299957 / 0.037426497941

Years 8.0432317278

It takes 8.0432317278 years for money to double at 9% per year.

Source:

http://www.1728.org/compint2.htm

Step-by-step explanation:


Related Questions

The density of a certain material is such that it weighs 6900 grams for every 4.5 quarts of volume. Express this density in pounds per cubic foot. Round your answer to the nearest whole number.

Answers

The density in terms of  pounds per cubic foot is 101.2 pounds/ft³

What is the unitary method?

The unitary method is a method in which you find the value of a unit and then the value of a required number of units.

Given here; 6900 g for every 4.05 quarts thus expressing in terms of pounds per cubic foot we get = 15.22/0.15039

                                                  = 101.2

Hence, The density in terms of  pounds per cubic foot is 101.2 pounds/ft³

Learn more about the unitary method here:

https://brainly.com/question/22056199

#SPJ1

Alisa needs 4.65 feet of fencing to
complete the fence she is building.
She has a piece of fencing that is 4 ft
long. Does she have enough fencing?
Explain.

Answers

Alisa does not have enough fencing because 4.65 > 4.

No Alisa do not have enough fence.

What is perimeter?

The perimeter of an object is given by adding the side lengths of the object.

Given that Alisa needs 4.65 feet of fencing to complete the fence she is building. She has a piece of fencing that is 4 ft long.

We need to determine whether she have enough fencing or not,

Since we know that the fencing can be considered as perimeter of the building,

So, if she only has 4 ft long fence, she cannot cover a 4.65 ft long fence.

Hence Alisa do not have enough fence.

Learn more about perimeter click;

https://brainly.com/question/6465134

#SPJ2

What is the area of a circle with a diameter of 14 meters? Leave the answer in terms of π.

49π square meters
7π square meters
196π square meters
14π square meters

Answers

Therefore , the solution of the given problem of circle comes out to be Area = 154 meter square  or 49π meter square option 1 is correct.

Circle – what is it?

A moving point on a plane is followed so that its distance from a specific point remains constant to produce the circular form known as a circle. The English term circle derives from the Greek word kirkos, which meaning hoop or ring. Area of circle= πr²

Here,

Given :

Diameter of circle : 14

Radius =14/2 =  7 meters

and

Using formula

Area= πr²

=> Area = π7²

=>Area = 22/7 * 7²

=> Area = 22*7

=> Area = 154 meter square or 49π meter square

Therefore , the solution of the given problem of circle comes out to be Area = 154 meter square  or 49π meter square option 1 is correct.

To know more about circle , visit

brainly.com/question/29142813

#SPJ1

Answer: A the first one 49π square meters

Find the area of the parallelogram below.

Answers

Answer: 58 i think

Step-by-step explanation: i guess you have to add sorry if it wrong

33 hope this helps and sorry if it’s wrong

Simplify the expression 4 to the power of 3 + 2(3 − 2).

Answers

The answer is 66 ugcjkufdvkigf

Select the correct answer.
Which function has an inverse function?

Answers

Answer:

d

Step-by-step explanation:

so the first part is multiplication and the second part is division bc it's a fraction hope this helps <3

What would y be? If x is 9 m

Answers

The answer is 30 because you do big side over small side and cross multiply.

This probability distribution shows the typical grade distribution for a Geometry course with 35 students. Frequency 5 10 15 3 2 Find the probability that a student earns a grade of B

Answers

Answer:

0.29

Step-by-step explanation:

Total number of students = 35

Number of students who got B = 10

Probability that a student earns grade B :

Probability = required outcome / Total possible outcomes

P(grade B) = 10 / 35 = 0.2875

= 0.29

In ΔHIJ, the measure of ∠J=90°, the measure of ∠H=15°, and JH = 54 feet. Find the length of HI to the nearest tenth of a foot

Answers

Answer:

46

Step-by-step explanation:

What is the value of the expression below when x=2x=2?
8x^2 +6x-8
8x
2
+6x−8

Answers

The value of the expression 8x² + 6x - 8 below when x=2 is 36.

The value of the expression when x = 2

The expression can be evaluated by following the steps below:

8x² + 6x - 8 in x = 2 means that the variable x will be replaced by the given number which is 2.

8*2² + 6*2 - 8

8*4 + 12 - 8

32 + 16 - 8 = 36

This therefore means that when x= 2 in 8x² + 6x - 8 , the value gotten will be 36.

Read more about Evaluation of expressions here brainly.com/question/4344214

#SPJ1

Pls help me, if you get it right I will give you Brainlist!​

Answers

Answer:

Step-by-step explanation:

3.14x (3)^2

28.3ft

Answer:

The area of the circle is 28.3 [tex]ft^2[/tex].

Step-by-step explanation:

The formula to find the area of a circle is [tex]\pi r^2[/tex], where [tex]r[/tex] represents the radius of the circle. In this case, the area would be [tex]3.14 * 3^2 = 3.14 * 9 = 28.26[/tex] ≈ 28.3 [tex]ft^2[/tex].

Is a function that can be graphed
as a solid line discrete or continuous?

Answers

Linear function Is a function that can be graphed as a solid line discrete or continuous

What is a linear function?

Linear functions are simply known as functions whose graph is a straight line.

They have one dependent variable and one independent variable.

These functions have either one or two variables without exponents.

Continuous graphs are used to represent functions that are continuous along their entire or whole domain.

Whereas, discrete graphs are used to represent values at specific points along the number line from different directions.

Types of the linear function;

Direct variationslope-intercept formstandard formpoint-slope form

Hence, it is a linear function

Learn more about linear functions here:

https://brainly.com/question/15602982

#SPJ1

pls help i’ve been stuck on this question ‼️

Answers

3/8 should be your answer !!!
The correct answer is B. 3/8 because there are 8 total numbers and only 3 numbers on the spinner are greater than 5 (6, 7, and 8)

the sum of three numbers is 124. the third number is 4 times the first. the second number is 10 more than the first what are the numbers

Answers

Answer:

19,29,76

Step-by-step explanation:

x=first number

x+10=second number

4x=third number

add three numbers to equal 124.

x+(x+10)+4x=124

6x=114

x=19 first number

x+10 0r

19+10=29 second number

4x or

4(19)=76 third number

19+29+76=124

124=124

Mark's school is 5 kilometers away from his home. There are about 0.62 miles in 1 kilometer. About how many miles is Mark’s school from his home?

Answers

Answer:

3.1 miles

Step-by-step explanation:

(5 km)(0.62 mi/km) = 3.1 miles

3.1 miles! 3.10686 exactly

Idil owns a small business selling clothing. She knows that in the last week 3
customers paid cash, 25 customers used a debit card, and 53 customers used a credit
card.
with
Based on these results, express the probability that the next customer will pay
cash or a credit card as a percent to the nearest whole number.

Answers

The probability that the next customer will pay cash or a credit card is 56%, since 3 customers paid cash and 53 customers used a credit card out of a total of 81 customers.

What is customers?

Customers are individuals or organizations who purchase goods and services from a business. They play an important role in a company's success as they provide the revenue needed to sustain and grow the business. Customers become loyal to a business when they are provided with quality products, excellent customer service, and competitive prices. Companies that focus on customer satisfaction often develop long-term relationships with their customers, as they understand the importance of customer loyalty. Companies must strive to continually meet the changing needs of their customers in order to remain successful in the long term.

To learn more about customers
https://brainly.com/question/27155914
#SPJ1

Select all the relations which represent a function.
- (1,3), (2,5), (2,7), (4,9) (1,3), (1,5), (1,7), (4,9) 0 (1,2), (2,5), (2,1), (4,5)
(1,3), (2,5), (3,7), (4,9) (1,3), (2,3), (3,3), (4,3)

Answers

Therefore , (1, 3), (2, 5), (3, 7) (4, 9) and (1, 3), (2, 3), (3, 3) (4, 3) are the relations that represent a function.  

Function is what?

According to a function's rule, every x value in the domain has one and only one range of y values. Definition. A one-to-one function exists when there is just one and only one value of x such that f(x) = y.

Here,

The relationship is (1, 3), (2, 5), and (2, 7) (4, 9)

Given that 2 is repeated, the connection is not a function.

The relationship is (1, 3), (2, 5), and (3, 7) (4, 9)

Since there are no repeating numbers, the relation is a function.

The relationship stated is (1, 3), (1, 5), and (1, 7). (4, 9)

The relationship is not a 1 repeated function.

The relationships are (1, 3), (2, 3), and (3, 3). (4, 3)

Since there are no repeating numbers, the relation is a function.

The relationship stated is (1, 2), (2, 5), and (2, 1) (4, 5)

As 2 repeated, the relationship is not a function.

To know more about function , visit

brainly.com/question/12431044

#SPJ1

I need to evaluate the limit and I also need to show the work for it. Please help me out if you can.

Answers

Answer:

-6

Step-by-step explanation:

You can solve all math problems via  Photo math application, you can download it from the store for free, it is easy to write the question via the camera and quickly display the final result with the solution steps.

PLEASE HELP ME PLEASE I NEED IT RN

Answers

Answer:

A. -9/2

Step-by-step explanation:

Rate of change of y in respect to x = change in y/change in x

Using two pairs of values, say (-6, 33) and (-2, 15),

Rate of change = (15 - 33)/(-2 - (-6))

Rate of Change = -18/4

Simplify

Rate of change = -9/2

A couch and coffee table cost a total of $1172. The cost of the couch is three times the cost of the coffee table. Find the cost of each item.

Answers

Answer:

x + 3x = 1172, where x is the cost of the coffee table and 3x equals the cost of the couch.  

 

4x = 1172  

 

x = 293  

 

thus, 3x = 293

293 x 3= 879

The couch is $879 and the coffee table is $293

Which model can be used to represent
the number below?

Answers

Answer:

0.7

Step-by-step explanation:

A satellite dish is in the shape of a parabolic surface. Signals coming from a satellite strike the surface for the dish and are reflected to the focus, where the receiver is located. The satellite dish has a diameter of 14 feet and a depth of 3 feet. How far from the base of the dish should the receiver be placed? Round your answer to the nearest tenth.

Answers

Answer:

Given that we know the base of the parabola is at the origin, and that it is symetrical about the y-axis, we can simplify the equation to

y=ax2=14px2" role="presentation" style="display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: normal; font-size: 16.66px; letter-spacing: normal; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; position: relative;">y=ax2=14px2y=ax2=14px2

which corresponds to the given equation a=14p" role="presentation" style="display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: normal; font-size: 16.66px; letter-spacing: normal; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; position: relative;">a=14pa=14p given above.

Since y=6" role="presentation" style="display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: normal; font-size: 16.66px; letter-spacing: normal; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; position: relative;">y=6y=6 when x=2" role="presentation" style="display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: normal; font-size: 16.66px; letter-spacing: normal; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; position: relative;">x=2x=2,

6=a(2)2=4a" role="presentation" style="display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: normal; font-size: 16.66px; letter-spacing: normal; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; position: relative;">6=a(2)2=4a6=a(2)2=4a

and

a=32" role="presentation" style="display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: normal; font-size: 16.66px; letter-spacing: normal; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; position: relative;">a=32a=32

Thus we have

32=14p12p=2p=16" role="presentation" style="display: table-cell !important; line-height: 0; text-indent: 0px; text-align: center; text-transform: none; font-style: normal; font-weight: normal; font-size: 16.66px; letter-spacing: normal; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 3.337em; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; width: 10000em; position: relative;">32=14p12p=2p=1632=14p12p=2p=16

So, the receiver should be placed 16" role="presentation" style="display: inline-block; line-height: 0; text-indent: 0px; text-align: left; text-transform: none; font-style: normal; font-weight: normal; font-size: 16.66px; letter-spacing: normal; overflow-wrap: normal; word-spacing: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; position: relative;">1616 of a foot, or 2 inches, above the base.

Edgar accumulated $9,000 in credit card debt. If the interest rate is 30% per year and he does not make any
payments for 2 years, how much will he owe on this debt in 2 years by compounding continuously?

Answers

Answer:

$16399.06

Step-by-step explanation:

Given

Debt amount P = $9000Interest rate r = 30% = 0.3Time t = 2 yearsCompound number = continuous

Use formula

A = Pe^(rt)A = 9000*e^(0.3*2) = $16399.06

Maya is solving the equation 2(1+7x)=72. She lists an explanation for each step as shown. Which is the missing explanation for Maya's first step after writing the given equation?

Answers

Answer:

apply the distrbutive property

Step-by-step explanation:

...........................

Johnny bought 8 toy cars. The cars came in p packages. Write an expression that shows how many toy cars were in each package.

Answers

Answer:

p=8+x

Step-by-step explanation:

c=t/8 where c is the number of cars in each package.

Find the exact value of x.

Answers

Answer:

[tex]x = 4 \sqrt{3} [/tex]

Step-by-step explanation:

[tex] \frac{8}{2} = 4 \\ 4 \times \sqrt{3} = 4 \sqrt{3} [/tex]

The ratio of the measure of an exterior angle of a triangle to the measure of the adjacent interior angle is 1:4. Is the
triangle acute or obtuse?

Justify your answer.

A.) Acute; the measure of the interior angle must be 144º.

B.)Acute; the measure of the interior angle must be 36°.

C.)Obtuse; the measure of the interior angle must be 144º

D.)The triangle could be acute or obtuse, depending on the measures of the other two angles.

Answers

The correct answer is B
D. The triangle could be acute or obtuse, depending on the measures of the other two angles.

The ratio of the measure of an exterior angle of a triangle to the measure of the adjacent interior angle is 1:4, which means that for every 1 degree of the exterior angle, there are 4 degrees of the interior angle. However, this does not provide enough information to determine the overall shape of the triangle.

The triangle could be acute (all angles less than 90 degrees), right (one angle equal to 90 degrees), or obtuse (one angle greater than 90 degrees) depending on the measures of the other two angles. For example, if the interior angle measure is 36 degrees, the exterior angle would be 9 degrees, and the triangle could be acute. On the other hand, if the interior angle measure is 144 degrees, the exterior angle would be 36 degrees, and the triangle could be obtuse.

Find a formula for RN for the function f(x) = (5x)² on [-1, 5] in terms of N.

Could you please show the work? I was able to get the area but can't exactly figure out what they want for the formula.

Compute the area under the graph as a limit.

lim RN=1050

Answers

Therefore , R(N) = 100 + 400 (N+1)(2N+1) + 800 x N2 N3 and area are the formulas for R(N) for the function f(x) = (5x)2 on [1, 5] and the function f(x) = (5x)2 in terms of N. R(N) = 767(approx) (approx).

What is function?

Each x value in the domain has one but only one y value range, according to the rule of a function. Definition. If there is only one and only one value of x variable such that f(x) = y, then the function is one-to-one.

Here,

In the given question, we have to find a formula for R(N) for the function f(x) =(5x)^2 on [1, 5] in terms of N.

The given function is f(x)=(5x)^2 on [1, 5].

Ax = (5-1)/N

Ax = 4/N

X = 1+iAx

X = 1+i4/N

f(x) = 25X^2

f(x) = 25(1+i4/N)^2

f(x) = 25(1+i8/N+16/N^2 i^{2})

R(N) = 1ƒ(X) Ax

Now putting the value of f(x) and Ax

R(N)==1 [25 (1+ &i + 16i2)]

R(N) = 1001 (1 +Ni + 16i2)

N100 (1+i+12)N

100 (N += i +122)+16 N(N+1)(2N+1)(+1)(2N+1)

R(N)=100 (N + √2/ N(N+1) x 100

R(N) =2/6× N + 100 × 5 × N(N+1) + 100 x 2

[tex]\lim_{n \to \infty}[/tex] R(N) = 100 + 400 + 800/3

[tex]\lim_{n \to \infty}[/tex] R(N) = 766.67

[tex]\lim_{n \to \infty}[/tex] R(N) = 767(approx)

Therefore , the solution of the given problem of function comes out to be [tex]\lim_{n \to \infty}[/tex] R(N) = 767(approx).

To know more about function , visit

brainly.com/question/12431044

#SPJ1

please help me this is. big

Answers

Answer:

C. = 69.5

Step-by-step explanation:

The median or the average between 80 and 59 is 69.5

Hope this helps! :)

Pls answer will mark brainliest! Ashlyn is having new hardwood flooring installed at the living room kitchen and dining room if the flooring cost $4.25 per square foot, how much will she spend? ​

Answers

Answer:

$580.13

Step-by-step explanation:

The area of the flooring:

A = 1/2*8*(13.5 - 7.5) + 1/2(8 + 4 + 18)(7.5) = 136.5 ft²

Cost of flooring:

136.5*$4.25 = $580.13
Other Questions
TransversalsFind the value of x. 1. The height of a right triangular prism is 1 5/6 inches. Each side of the triangular base measures 10 inches, and the height of the base is 8 2/3 inches. The triangular prism is placed atop a cube whose side measures 10 inches so that one of the triangular prisms bases lies completely on one side of the cube.What is the surface area of the solid formed?100 POINTS!!! IF YOU DRAW AN ACCURATE DIAGRAM TOO, YOU WILL BE AUTOMTIC BRAINLIEST!!!!!! What happens to the light when you look at a green object? A set of middle school student heights are normally distributed with a mean of 150150150 centimeters and a standard deviation of 202020 centimeters. Darnell is a middle school student with a height of 161.4161.4161, point, 4 centimeters. Using a microscope, you observe an amoeba moving toward a food source. This is an example ofA) reproduction.B) cellular structure.C) metabolism.D) growth.E) responsiveness. What is the growth factor of the following example? Assume time is measured in the units given.A city grows by 28% per decadea. 0.28 per decade c. 128 per decadeb. 28 per decade d. 1.28 per decadePlease select the best answer from the choices provided A grocery tore ha 13%-off ale on all bread. You decide to purchae 6 loave of bread. Let b be the original price of a loaf of bread. Expand the expreion 6(b-0. 13b). Once the expreion i expanded, who do the term repreent Patel is solving 8x2 + 16x + 3 = 0. Which steps could he use to solve the quadratic equation? Select three options. 8(x2 + 2x + 1) = 3 + 8 x = 1 Plus or minus StartRoot StartFraction 5 Over 8 EndFraction EndRoot x = 1 Plus or minus StartRoot StartFraction 4 Over 8 EndFraction EndRoot 8(x2 + 2x + 1) = 3 + 1 8(x2 + 2x) = 3 QUESTION 54What is/are the reactant(s) of the chemical reaction shown?CH4 (g) + 202 (g) CO2 (g) + 2H20 (g)O CH4 onlyO 02 onlyO CH4 and 02O CO2 and H20The process above is not a chemical reaction 4. Adnde vas para comer la comida mexicana? What the answer is back In November of 2007, Harper Lee received the Presidential Medal of Freedom for her lifelong devotion to racial equality.O TrueFalse ________________ ______________ is a learned trait and is not genetically passed down to offspring. If there are estimated to be 10 ^ 11 galaxies in the known universe and 10 ^ 11 stars in each galaxy, how many stars are estimated to be in the universe? Why do you think President Carter succeeded with the Camp David Accords, but failed during the Iran Hostage Crisis Suppose you are writing an essay arguing that your school should requirestudents to wear uniforms. Which sentence would best build logos into yourargument?O A. School uniforms are much less expensive than other clothes andwill allow families to save money. B. Imagine what it would be like to go to school without having toworry whether what you're wearing is "cool." C. Our principal, Mr. Williamson, believes it is best for our school torequire students to wear uniforms. D. As class president, I support the idea of establishing a uniformpolicy at our school. What reason does Antigone give for her death being crueler than all the others?She is young.She is innocent.She is a princess.She is unmarried.THE ANSWER IS A. She is young. cand dis i need help Billy ran 3 miles on his first day of training. The next day he ran 2/3 that distance. How far did he run the second day? solve the following 4x-3=2x+7 Someone please help me thank you