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3 years ago

Find an explicit formula for the geometric sequence −8 ,−40 ,−200 ,−1000,...

Mathematics

1 answer:

Leokris [45]3 years ago

4 0

Answer:

This is a geometric sequence since there is a common ratio between each term. In this case, multiplying the previous term in the sequence

Step-by-step explanation:

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Deb deposited $70 in a savings account earning 10% interest, compounded annually.

bija089 [108]

Answer:

Deb will have $93.17 in 3 years

Step-by-step explanation:

FV = P(1 + r)^n

FV = 70(1+0.1)^3

FV = 70(1.331)

FV = 93.17

7 0

2 years ago

F(x)=2x-4. F(x)=2x-4 f-1x=_x+_. Complete the inverse function

natita [175]

Answer:

$f^{-1}(x) = \frac{1}{2}(x +4)$

Step-by-step explanation:

Given

$f(x) = 2x - 4$

Required

Determine the inverse function

Start by replacing f(x) with y

$y = 2x - 4$

Swap the positions of y and x

$x = 2y - 4$

Make y the subject: Add 4 to both sides

$x+4 = 2y - 4+4$

$x+4 = 2y$

Make y the subject: Divide through by 2

$\frac{1}{2}(x + 4) = y$

$y = \frac{1}{2}(x + 4)$

Replace y with f-1(x)

$f^{-1}(x) = \frac{1}{2}(x +4)$

3 0

2 years ago

On a certain day, the temperature

Harlamova29_29 [7]

It took 11 hours to change!

6 0

2 years ago

Albert is five years younger than his brother bill. Write an equation that shows Albert's age with respect to Bills.

Charra [1.4K]

Answer:

A=B-5

Step-by-step explanation:

Albert is known as the variable A.

Bill is known as the variable B.

If Albert is 5 years younger than Bill. Then the equation will be

a=b-5

3 0

3 years ago

Which data set has a median of 15?

Neporo4naja [7]

Answer: The last one is the one with the Median

Step-by-step explanation: Hope this helps ^^

6 0

2 years ago

Read 2 more answers