Bridgette has $1,000 to invest. She has two different investment options, shown in the table below. Each option would give her a different value over three years.

Number of Years 1 2 3
Option A (amount in dollars) 1100 1200 1300
Option B (amount in dollars) 1100 1210 1331


Part A: What type of function, linear or exponential, would be best to describe the value of the investment over a fixed number of years using Option A? Explain your answer.

Part B: Write a function, a(t), to describe the value of the investment, in dollars, of Option A after t years.

Part C: What type of function, linear or exponential, would be best to describe the value of the investment over a fixed number of years using Option B? Explain your answer.

Part D: Write a function, b(t), to describe the value of the investment, in dollars, of Option B after t years.

Part E: Bridgette wants to invest in whichever option would increase her investment value by the greatest amount in 20 years. Will there be any significant difference in the value of Bridgette's investment after 20 years if she uses Option A over Option B? Explain your answer, and show the investment value after 20 years for each option.

Answers

Answer 1

Answer:

Part A:

Option A is a linear function

Part B:

a(t) = t × 100 + 1000

Part C:

Option B is an exponential function

Part D

[tex]b(t) = 1000 \times (1 + 0.1)^t[/tex]

Part E:

There will be a significant difference in the value of Bridget's investment after 20 yeas if she uses Option A over Option B

Step-by-step explanation:

The given parameters are;

The amount Bridgette has to invest = $1,000

The value of each investment option is given as follows;

Number of years   [tex]{}[/tex]    Option A    [tex]{}[/tex]     Option B

1                               [tex]{}[/tex]    1100                 1100

2                               [tex]{}[/tex]   1200                1210

3                              [tex]{}[/tex]    1300                1331

Part A:

Given that the first difference between subsequent data values are 2 - 1 = 1 and 1200 - 1100 = 100, 3 - 2 = 1 and 1300 - 1200 = 100 both of which are constant, the type of function that would be best to describe option A is a linear function

Part B:

The function a(t) for Option A is given as follows;

The rate of change of the function amount with time is (1300 - 1200)/(3 - 2) = 100

Therefore, comparing with the general form of a linear function, y = m·x + c, we have;

m = The rate of change of the function = 100

The y-intercept, the value of the amount a 0 time (the start of the investment) = c = 1000

The function in terms of t, a(t) = t × 100 + 1000

Part C:

The first difference of Option B are different but the first ratio given as follows;

1210/1100 = 1331/1210 = 1.1 = Constant which is the characteristics of an exponential variable

Therefore, the equation to describe the value of the investment in dollars, of Option B is an exponential function

Part D

We, have for an exponential function;

[tex]b(t) = 1000 \times (1 + r)^t[/tex]

When t = 1, we have;

[tex]b(1) = 1000 \times (1 + r)^1 = 1100[/tex]

∴ 1 + r = 1100/1000 = 1.1

r = 1.1 - 1 = 0.1

We check for t = 2, to get;

[tex]a(2) = 1000 \times (1 + 0.1)^2 = 1210[/tex]

We check for t = 3, to get;

[tex]b(3) = 1000 \times (1 + 0.1)^3 = 1331[/tex]

The function b(t) to describe the value of the investment in dollars, of Option B after t years is [tex]b(t) = 1000 \times (1 + 0.1)^t[/tex]

Part E:

The investment value after 20 years is given as follows;

For Option A, we have;

a(20) = 20 × 100 + 1000 = 3000

For Option B, we have;

[tex]b(20) = 1000 \times (1 + 0.1)^{20} \approx 6727.5[/tex]

Therefore, the difference in the investment value after 20 years for Option B and Option A is approximately $6727.5 - $3000 = $3727.5 which is significant.


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Answer:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answers

Answer: 14%

Step-by-step explanation:

From the question, we are informed that Bobby guessed there were 92 jelly beans in a jar when there were actually 107. The percentage error will be:

= Difference in error / Actual value × 100

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Answers

Answer:

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Step-by-step explanation:

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Answers

Answer:

side IG < side HI < side GH

(greatest to least)

Step-by-step explanation:

angle with respect to appropriate side

angle GHI < angle HGI < angle HIG

You sold a total of 56 student and adult tickets for a total of $328. Student tickets cost $5 and adult tickets cost $8. How many student tickets were sold?

Answers

Answer:

The number of student ticket sold is 40

Step-by-step explanation:

Given;

total number of tickets sold,= 56 tickets

total amount the tickets were sold, = $328.

cost of student tickets, = $5

cost of adult ticket,  = $8

Let the number of student ticket sold = x

Let the number of adult ticket sold = y

To determine the number of student tickets sold, we will have the following equations;

x + y = 56 ------ equation (1)

5x + 8y = 328 -----equation (2)

from equation (1), y = 56 - x

Substitute the value of y in equation (2);

5x + 8y = 328

5x + 8(56 - x) = 328

5x + 448 - 8x = 328

5x - 8x = 328 - 448

- 3x = - 120

x = 120 / 3

x = 40

Therefore, the number of student ticket sold is 40

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Answers

(fg)(x)= 2x^2+10x

Step-by-Step-Explanation:
(fg)(x)=(f(x))(g(x))
(fg)(x)=(2x)(x+5)
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Answers

Answer:

11

Step-by-step explanation:

11 × 25 + 12

287 -12

275 ÷ 25

Answer:

d

Step-by-step explanation:

esa es la respuesta correcta

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Answers

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————————-

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Answer:

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Step-by-step explanation:

It tells you on the graph

Answer:

a) I think the turning point is max or min correct? If so, the min of the function is (-2, -1) AKA the vertex

b) I also think the roots are just another way to say the x-intercepts so in that case, the roots are (-1, 0) and (-3, 0)

Step-by-step explanation:

I hope that helps!

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Answers

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Step-by-step explanation:

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Answers

Answer:

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?

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Answers

Answer:

Step-by-step explanation:

it is C. the third one

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Answers

Answer:

2 is A. no solution

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Step-by-step explanation:

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Which of the following transformations preserve congruence?
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II. Reflection over the x-axis
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Answers

Answer:

None of them are correct

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Answers

Answer:

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Step-by-step explanation:

Find the length of the missing side plz

Answers

Answer:

b = 11

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Trigonometry

Pythagorean Theorem: a² + b² = c²

a is a legb is another legc is hypotenuse

Step-by-step explanation:

Step 1: Identify

We are given a right triangle. We can use PT to solve the missing side.

Step 2: Define

leg a = 60

hypotenuse c = 61

leg b = ?

Step 3: Find leg b

Substitute:                  60² + b² = 61²Exponents:                 3600 + b² = 3721Isolate b term:            b² = 121Isolate b:                     b = 11

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Answers

Answer:

4

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Answers

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Answers

Answer:

x=27

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Step-by-step explanation:

∠A+∠K=180

3x+13+∠K=180

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∠K+∠L+∠J=180

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207-x=180

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Don't worry, you aren't gonna fail. Take a deep breath and relax. Geometry is tricky but you got this. Have a nice night.

Answer:

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Step-by-step explanation:

∠AKL is exterior angle and as per property it is equal to sum of two non-adjacent angles:

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Answers

Answer:

25 + 3y

Step-by-step explanation:

3g - 11 + 3y when g = 12

~Substitute

3(12) - 11 + 3y

~Simplify

36 - 11 + 3y

~Combine like terms

25 + 3y

Best of Luck!

Answer:

y=25

Step-by-step explanation:

I think this may be the answer but I'm not sure.

g(n) = n^2+2
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(gºg)(-3)

Answers

Answer:

123

Step-by-step explanation:

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Answers

Answer:

false false false

Step-by-step explanation:

hope this helps :]

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