All categories

2 years ago

If f(1) = 160 and f(n + 1) = –2f(n), what is f(4)?

Mathematics

1 answer:

balandron [24]2 years ago

7 0

Answer with Step-by-step explanation:

f(1) = 160 and f(n + 1) = –2f(n)

⇒ f(2)= -2×f(1)

= -2×160

= -320

⇒ f(3)= -2×f(2)

= -2×(-320)

= 640

⇒ f(4)= -2×f(3)

= -2×640

= -1280

Hence, Value of f(4) is:

- 1280

You might be interested in

the combination for a lock is a 3 didget number the didgets are the prime factors of 42 listing from least to greatest what is t

zhannawk [14.2K]

42 = 2 * 3 * 7

So, the combination for the lock is 237

3 0

2 years ago

A number is such that it is as much greater than 112 as it is less than it . find the number

lesya [120]

Answer. it is -111 because it is greater than 112 and in positive form it is smaller and in negative it is bigger .

6 0

2 years ago

5 + 8n = 7(-7 + 4n) -6

Luba_88 [7]

Answer:

n = 3

Step-by-step explanation:

Given

5 + 8n = 7(- 7 + 4n) - 6 ← distribute parenthesis on right side

5 + 8n = - 49 + 28n - 6 ( subtract 28n from both sides )

5 - 20n = - 55 ( subtract 5 from both sides )

- 20n = - 60 ( divide both sides by - 20 )

n = $\frac{-60}{-20}$ = 3

6 0

2 years ago

ASAP please

algol13

Answer:

Step-by-step explanation:

8 0

2 years ago

the cost of renting a car for one day and driving m miles if the rate is $49 per day plus 5 cents per mile

Sonbull [250]

Answer:

$Total\ Rent = 49 + 5m$

Step-by-step explanation:

Given

Rent per day = $49

Addition = 5 cents per mile

Required

Determine the rent for a day and m miles

First, we need to generate a formula from the given parameters;

Let d represent number of days and m represent additional miles;

$Total\ Rent = 49 * d + 5 * m$

$Total\ Rent = 49 d + 5 m$

Solving for the rent for a day and m miles

We have that: d = 1 and m = m

Substitute these in the formula above

$Total\ Rent = 49 * 1 + 5 * m$

$Total\ Rent = 49 + 5m$

Hence, the total rent is

$Total\ Rent = 49 + 5m$

5 0

2 years ago