<span>Martin deposits $200 in a savings account that earns 5% annual interest.

year         interest                     balance

1              200 * 5%                    200(1.05)

2              200(1.05) * 5%          200(1.05)^2

3            200(1.05)^2*5%        200(1.05)^3

y                                              200(1.05)^y

=> m = 200 (1.05)^y

four years later, cary deposits $200 in an account earning the same interest.

</span>
<span><span>year         interest                     balance

5              200 * 5%                    200(1.05)

6              200(1.05) * 5%          200(1.05)^2

7           200(1.05)^2*5%        200(1.05)^3

y                                              200(1.05)^(y-4)

=> c = 200(1.05)^ (y-4)
</span>
Answer:
Martin: 200(1.05)^y
Cary: 200(1.05)^(y–4)</span>

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3 years ago

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The equation of a circle is given below. Identify the radius and center. Then graph the circle.

pav-90 [236]

The center of the circle is (0,2) and the radius is 5 units

<h3>How to determine the radius and the center?</h3>

The equation is given as:

x² + (y-2)² =25

The equation of a circle is given as:

(x - a)² + (y - b)² = r²

Where:

Center = (a,b)

Radius = r

By comparison, we have:

(a,b) = (0,2)

r² = 25

Evaluate

r = 5

Hence, the center of the circle is (0,2) and the radius is 5 units