Simplify your answer and write it as a proper fraction,improper fraction,or interger
1 answer:
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First find the area of the triangle.
ABCE is a parallelogram, this means that the area of triangle ABE is equal to the area of triangle EBC. The are of the entire trapezoid is 180 square centimeters, we already found the area of the triangle, so that leaves us with:
So the area of the entire parallelogram must be 144 square centimeters. So each half of the parallelogram must be equal to:
ABCE is a parallelogram, this means that the area of triangle ABE is equal to the area of triangle EBC. The are of the entire trapezoid is 180 square centimeters, we already found the area of the triangle, so that leaves us with:
So the area of the entire parallelogram must be 144 square centimeters. So each half of the parallelogram must be equal to:
Answer:
5.70%
Step-by-step explanation:
Correct word <em>"We turned a $25,000 investment of money in 1982 into $100,000 in 2007." What return (interest rate) did they really earn on their investment?</em>
No of years(1982 to 2007) = 25 years
The average annual return is R%, so $25,000 * (1 + R)^25 = $100,000
(1 + R)^25 = $100,000 / $25,000
(1 + R)^25 = 4
<em>We take 25th root on each side</em>
(1 + R)^(25*1/25) =
1 + R = 1.0570
R = 1.0570 - 1
R = 0.057
R = 5.70%
So, the return (interest rate) they really earn on their investment is 5.70%.