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The formula for finding the surface area of a sphere is A=4π
. Since we already have the radius, we just plug that into the equation, like so:
A = 4 x 3.14 x
First, following the rules of PEMDAS, do the exponent, coming out with an answer of 1. Now, multiply 4 x 3.14, which is 12.56. 12.56 x 1 = 12.56.
Rounded to the nearest tenth, your answer is 12.6.
Hope this helps!
A = 4 x 3.14 x
First, following the rules of PEMDAS, do the exponent, coming out with an answer of 1. Now, multiply 4 x 3.14, which is 12.56. 12.56 x 1 = 12.56.
Rounded to the nearest tenth, your answer is 12.6.
Hope this helps!
Recall the formula for determining the interest using simple interest
Convert the rate into decimal form by dividing by 100%
Substitute the following values
P = $1300, r = 0.07, t = 6/12 (12 months in a year, only 6 months has passed)
Therefore, Margo will pay back $45.50 in interest.