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Andrei [34K]
3 years ago
13

You are saving money to buy a used car. You deposit $2,500 in an account that earns interest compounded annually. The expression

2500(1+r)^2 represents the balance after 2 years, where r is the annual interest rate in decimal form
Mathematics
1 answer:
seraphim [82]3 years ago
6 0

Answer:

r= [(\frac{A}{2500}) ^\frac{1}{2} -1]

Step-by-step explanation:

Given data

Principal = $2500

time t= 2 years

Required

the rate r

Given the expression for the balance 2500(1+r)^2

Hence

A= 2500(1+r)^2

we can make r subject of formula

r= [(\frac{A}{P}) ^\frac{1}{t} -1]

r= [(\frac{A}{2500}) ^\frac{1}{2} -1]

Hence, for any value of A, we can find the rate using the expression above

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I WILL AKE YOU THE BRAINLIEST EASY QUESTION
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Answer:

3rd choice

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9/5 = 18/10 = 1.8

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Find the values of x and y if (-x + 5, 1) = (-y, 2x - 5y).
MrMuchimi

Answer:

x = 8, y = 3

Step-by-step explanation:

Equating corresponding x and y coordinates , then

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2x - 5x + 25 = 1

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3 years ago
Mr. aba builds a circular patio with a diameter of 12 feet he covers the patio with paving stones the cost of the paving stones
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1.) Find the area of the circle:
• Formula: A=pi•r^2

- To find the area of a circle, we need to have the radius, and since the diameter is 2x the length of the radius, the radius is 1/2 of the diameter.

Finding the radius: r=d/2

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