The value of the computer decreased exponentially throughout the five-year
period. What was the average annual amount of decrease in dollars per
year) over the two-year interval from t = 2 to t = 4?
(Note: Give the answer as a positive value.

Answers

Answer 1

Answer:

See Explanation

Step-by-step explanation:

Incomplete question as the function is not given. So, I will give a general solution

Required

Determine the average rate of change from t = 2 to 4

Average rate of change is :

[tex]Rate = \frac{f(b) - f(a)}{b - a}[/tex]

In this case: a = 2 and b = 4

So, we have:

[tex]Rate = \frac{f(4) - f(2)}{4 - 2}[/tex]

[tex]Rate = \frac{f(4) - f(2)}{2}[/tex]

Assume that the exponential function is:

[tex]f(t) = 3^{-t[/tex]

f(4) and f(2) will be:

[tex]\\ f(4) = 3^{-4} = \frac{1}{81}[/tex]

[tex]f(2) = 3^{-2} = \frac{1}{9}[/tex]

So:

[tex]Rate = \frac{f(4) - f(2)}{2}[/tex]

[tex]Rate = \frac{\frac{1}{81} - \frac{1}{9}}{2}[/tex]

Take LCM

[tex]Rate = \frac{\frac{1 - 9}{81}}{2}[/tex]

[tex]Rate = \frac{-\frac{8}{81}}{2}[/tex]

[tex]Rate = -\frac{8}{81}*\frac{1}{2}[/tex]

[tex]Rate = -\frac{4}{81}[/tex]

So, the average rate of change is a decrease of 4/81


Related Questions

what is the greatest common factor of 27 , 18 , and 63 ?

Answers

Answer:

9

Step-by-step explanation:

18/2 = 9

27/3 =9

63 = 9

I don't know how to explain this more

10e + 3 < 92

Please reply quickly and explain. I'm having trouble understanding.

Answers

Answer:

10E+3 <92

10(e:6) or any number

10(6)=60+3=63 <92

Step-by-step explanation:

Answer:

10e + 3 < 92

Step-by-step explanation:

Any number times ten plus three is less than 92. Like e = 3, which would be 10(3)+3, or 33. Any number that would make the statement true can be used in the place of e.

MathWiz wya boo??.......

Answers

Answer:

i dont see angle S

Step-by-step explanation:

Answer:

108

Step-by-step explanation:

3x + 12 + 5x + 8=180

8x + 20= 180

8x= 160

x= 20

Angle S:

5x + 8

5(20) + 8

100 + 8

108

Please help me find the value of X!!!!!! Please!!!!

Answers

Answer:

52

Step-by-step explanation:

52 is the answer to your question

The mass of Jupiter is 1.8987x10/\27 kilograms and is roughly 317.8 times the mass of Earth. The mass of the solar system is about 1.992x10/\30 kilograms. The Sun accounts for about 99.8% of this mass.
a. Find the mass of Earth in kilograms
b. What is the approximate mass of all of the other objects in the solar system, not counting the sun?
c. what percentage of the mass obtained in part b is represented by jupiter?
plsssssssssssssssss help!!!!

Answers

Answer:

i dont really get the question



9) What is the equation of the
function y = 3/x translated 6
units to the right and 2 units
down?

Answers

Answer:

-2 = 3/6

Explanation:

6 units the right would be the X, and 2 units down would be the Y.

Answer:

y'' = 3/(x - 6)  - 2

Step-by-step explanation:

Given function

y = 3/x

Translation 6 units to the right:

f(x) → f(x - 6)y' = 3/(x - 6)

Translation 2 units down:

f(x) → f(x) - 2y'' = 3/(x - 6)  - 2

Factor the following trinomial
x2 + 8x – 9

Answers

Answer with step-by-step solution:

x^2+8x-9

x^2+9x-x-9

x(x+9)-(x+9)

(x+9)(x-1)

multiple choice ! pls help

Answers

The right answer is c

Tell me what's better 38 packs of water for $14.60 or 63 packs of water for 24.90

Answers

Answer:

I think 63 packs

Step-by-step explanation:

But not sure so tell me if I'm right

Samuel read 8 books in 10 months. What was his rate of reading in books per month?

Answers

Answer:

Answer 1.25

Step-by-step explanation:

Tolal moths he take to read 8 book = 10

Therefore, Total month he will take to read 1 book =10/8=1.25

homework please help its over due​

Answers

Step-by-step explanation:

TRIANGLE 1

c = 2√5

= 2 × √5

= √4 × √5

= √20

a = 2

b = ?

b² = c² - a²

= √20² - 2²

= 20² - 4

= 400 - 4

= 396

b = √396

= √36 × √11

= 6 × √11

= 6 √11

TRIAGLE 2

a = 12

b = 6√11

= √396

c = ?

c² = a² + b²

= 12² + √396

= 144 + √396²

= 144 + 396

c = √540

= √36 × √15

= 6 × √15

= 6 √15

Sorry if i wrong. Im beginner in USA server

Due today answer with steps.

Answers

The train is going 90 mph.
This one is easy to explain, if you have 90 miles travelled in one hour of time, then you have 90 mi/1 hour, or 90 mph.

Please help me......

Answers

Answer:

[tex]\frac{3}{8}[/tex]

Step-by-step explanation:

[tex]A=6*\frac{1}{4} ^2\\\\A=6*\frac{1}{16} \\\\A=\frac{6}{16} \\\\A=\frac{3}{8}[/tex]

Answer:

[tex]A = \frac{3}{8}ft^2[/tex]

Step-by-step explanation:

Using the given formula, [tex]A=6s^2[/tex], and the given value for the side length of the cube, [tex]\frac{1}{4}[/tex] foot, substitute the given value into the equation and solve.

[tex]A=6(\frac{1}{4})^2[/tex]

Remember, setting any value to the second power is the same as multiplying the base (the value that is being squared) by itself. Apply this information to the given problem,

[tex]A = 6(\frac{1}{4}*\frac{1}{4})\\\\A = 6(\frac{1}{16})\\\\A = \frac{6}{16}\\\\A = \frac{3}{8}[/tex]

Cory makes a map of his favorite park, using a coordinate system with units of yards. The old oak tree is at position (3, 7) and the granite boulder is at position (-2, 6). How far apart are the old oak tree and the granite boulder? Round to the nearest tenth if necessary

Answers

Answer: 5.09 units

Step-by-step explanation:

Given

Coordinates of Old oak tree are (3,7)

Coordinates of granite boulder are (-2,6)

Distance between them is given by distance formula i.e.

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Distance between them is

[tex]\Rightarrow d=\sqrt{(-2-3)^2+(6-7)^2}\\\Rightarrow d=\sqrt{(-5)^2+(-1)^2}\\\Rightarrow d=\sqrt{25+1}=\sqrt{26}\approx 5.09\ \text{units}[/tex]

How do you graph (0,4) need help thank you!

Answers

Answer:

Just move 4 spaces up

Step-by-step explanation:

Answer:

left 0 up 4

Step-by-step explanation:

Lori is running in a marathon, which is 26.2 miles long. So far she has run one-tenth of the marathon. How far has Lori run?

Answers

Answer:

2.62

Step-by-step explanation:

Whoever gets this correct gets brain, 5 stars and a thanks! An explanation of it would be amazing! Tysm!

Answers

Answer:

Greatest to Least:

76

8

-53

-274

76 is the highest positive number, which is then followed by 8

The bigger the NEGATIVE number, the least it is. So, -274 is smaller than -53

7 Hershey bars costs $6.23. Find the cost for 5 Hershey bars. *

Answers

find the cost of one bar first
$6.23 divide by 7 = $0.89
$0.89 x 5 =$4.45

Which image shows a reflection ABC

Answers

Answer:

A I think

Step-by-step explanation

Answer:

A

Step-by-step explanation:

I am not sure but I think it's A

Find the height of the trapezoid​

Answers

Answer: 25 yds

Step-by-step explanation:

a = (b1+b2)/2*h

600=(25+23)/2*h

600 = (48/2)*h

600=24h

h=25 yd

Value: 4
Which statement is incorrect about functions?
a. For each item in the domain there is only one item associated with it in the range.
b. For each item in the range there is only one item associated with it in the domain.
c. Given the function y=f(x) = 2x +1, when x=1, f(1)=3.
d. Given the function y=f(x)=x, when x = 2, f(2) = 2.

Answers

Answer: c

Step-by-step explanation:

I think the answer is c because the given fiction is y=f(x) = 2x+1 when x=1 , f(1)=3

HEY CAN ANYONE PLS ANSWER DIS MATH PROBLEM!

Answers

Answer: I think it is C. I might be wrong but I tried

Step-by-step explanation:

PLEASE HELP ME FIND CE!!

Answers

Answer:

the answer is 14

Step-by-step explanation:

i am sorry if im wrong

Gabriella went shopping for a new pair of pants because of a sale. The store was offering a 30% discount. What number should she multiply the prices on the tags by to find the price she would have to pay, before tax, in one step?

Answers

I think it is 0.3 hope it helps

Answer:

Step-by-step explanation:

Just multiply by 0,3

For EXAMPLE

30% of 100 would be 30

100 x 0,3 = 30

Can someone explain how to do this?

Answers

9514 1404 393

Answer:

  9 and 10

Step-by-step explanation:

Make use of your knowledge of multiplication tables.

  9² = 81

  (√89)² = 89

  10² = 100

√89 lies between 9 and 10

make (4, 10) and (3, 5) eqaution

Answers

Answer:

y=5x-10

Step-by-step explanation:

To find the slope

rise/run

10-5=5

4-3=1

The slope is 5

Y-intercept

y=5x+b

Use any coordinate for y and x and solve

10=5(4) +b

10=20+b

-10=b

-10 id the y-intercept

Which of the following is equivalent to 8x2+20x+

Answers

answer 36

i HOPE IT'S HELP

Find the value of x in the triangle shown below.
=
5
29
88°
5
6.9

Answers

Answer:

46 Degrees

Step-by-step explanation:

Because the sides are equal, we can assume that both of the remaining angles are equal. All triangles add up to 180 so 180-88= 92. Since both angles are equal we divide that by two and get 46 degrees.

What is the area of this quadrilateral?
2 ft
3 ft
8 ft
8 ft
3 ft
2 ft
A. 40 square feet
B. 80 square feet
C. 24 square feet
D. 20 square feet

Answers

24 square feet is the answer

What is the slope-intercept formula for a line with a rise of 3, a run of 1 and a y-Intercept of 5?

Answers

Answer:

y=3x+5

Step-by-step explanation:

y=mx+b

intercept is 5, postive and represents b

Slope is 3 and represents m

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