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3 years ago

15

Which is the initial value that shrinks an exponential growth function by 50%?

2 answers:

ValentinkaMS [17]3 years ago

7 0

Suppose that the exponential growth function is y = 4^x.

If x = 1, then y = 4^1 = 4.
If x = 3, then y = 4^3 = 64.

Let the initial value be 1/2.

The growth function is now y = 1/2 * 4^x.

If x =1, then y = 2 which is half of the y value before adding the 1/2.

If x = 3, then y = 1/2 * 64 = 32.

Answer: 1/2

scoundrel [369]3 years ago

3 0

Answer: 1/2 D :) on Edge

Step-by-step explanation:

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romanna [79]

Answer:

$\displaystyle x \approx 37.4^\circ$

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3 years ago

The cost of downloading songs from iTunes can be represented by the expression 1.29s, where s is the number

FromTheMoon [43]

The answer is A trust me

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The volume of this cylinder is 1,909.92384 cubic millimeters. What is the radius? Use n=3.14 and round your answer to the neares

klemol [59]

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1 year ago

For a club gathering you were having, you bought a total of 50 burgers, and spent $90. You paid $2 per turkey burger, and $1.50

Sedaia [141]

Answer:

<u></u>

<u>No. You would have to cut the number of veggie burgers in more than half.</u>

Explanation:

<u>1. Model the situation with a system of equations</u>

<u />

<u>a) Name the variables:</u>

number of turkey burgers: t
number of veggie burgers: v

<u />

<u>b) Number of burgers:</u>

50 = t + v

<u />

<u>c) Cost of the 50 burgers:</u>

$90 = 2t + 1.50v

<u>2. Solve that system of equations:</u>

<u />

<u>a) System</u>

50 = t + v

90 = 2t + 1.50v

<u>b) Mutliply the first equation by 2 and subtract the second equation</u>

100 = 2t + 2v
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10 = 0.5v

v = 20 ⇒ t = 50 - 20 = 30

<u />

<u>c) How much would you spend if the next year you buy the double of 20 turkey burgers (40) and the half of 30 veggie burgers (15)</u>

$2(40) + $1.50(15) = $80 + $22.50 = $102.50

Then, you if you double the number of turkey burgers, and cut the number burgers in half, you would spend more than $90 ($102.50).

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3 years ago