3 years ago

What is an exponential decay function?

Mathematics

1 answer:

Vikki [24]3 years ago

5 0

Answer:

In mathematics, exponential decay describes the process of reducing an amount by a consistent percentage rate over a period of time. It can be expressed by the formula y=a(1-b)x wherein y is the final amount, a is the original amount, b is the decay factor, and x is the amount of time that has passed.

Step-by-step explanation:

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The equation 3/x=5/7 is equivalent to the equation

katrin2010 [14]

Answer:

Step-by-step explanation:

3/x=5/7 is the same as A 21=5x Both equal to 21/5 or 4 1/5

7 0

3 years ago

If you deposit $5000 at the end of each year for 30 years using an annual interest rate of 9% compounded annually, how much mone

hichkok12 [17]

$163,500

5000(0.09) x 30 = 13,500
5000 x 30 = 150,000
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6 0

3 years ago

What is the surface area of this cylinder ( rounded to nearest tenth)

JulsSmile [24]

Answer:

Step-62.8m^2

Step-by-step explanation:

Surface area of a cylinder =

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3 years ago

SAT scores are distributed with a mean of 1,500 and a standard deviation of 300. You are interested in estimating the average SA

kotegsom [21]

Answer:

I should use at least 304 students

Step-by-step explanation:

Margin error (E) = t × sd/√n

E = 40

sd = 300

confidence level (C) = 98% = 0.98

significance level = 1 - C = 1 - 0.98 = 0.02 = 2%

t-value corresponding to 2% significance level and infinity degree of freedom is 2.326

n = (t×sd/E)^2 = (2.326×300/40)^2 = 17.445^2 = 304 (to the nearest integer)

3 0

3 years ago

the audience in a theatre is made up of the following ratio: men:women:children 3:4:5. there are 348 people in the audience. cal

scoundrel [369]

There are 87 men 3 is the male ratio You add all the ratios 3+4+5=12 3/12×348 =87

7 0

3 years ago