Answer:
Exact Area =
16pi - 32 square meters
Decimal Approx:
A = 18.3 sq m
Step-by-step explanation:
In degrees, it's 360° all the way around a circle. The 270° in the image is to show you that the small piece (the triangle and yellow segment) are in a 90° part of the circle. That is 1/4 of the circle, this helps with area two ways. We'll find 1/4 of the circle area and also, that makes the triangle base 8 and height 8. This helps us find triangle area. See image.
The amount of money invested in 11% account is $10000
<h3><u>Solution:</u></h3>Given that, A bank customer invests a total of $7000in two savings accounts.
One account yields 10% simple interest and the other 11% simple interest.
The customer earned a total of $800interest for the year.
Now, let the amount invested in 11% account be $n, then amount in other account will be 7000 – n
<em><u>The simple interest is given as:</u></em>
<em><u>Then, for 10% account:</u></em>
<em><u>And for 11% account:</u></em>
Now, we know that, total simple interest = S.I from 10% account + S.I from 11% account
80000 = 10(7000 - n) + 11n
80000 = 70000 – 10n + 11n
11n – 10n = 80000 – 70000
n = 10000
Hence, the amount of money invested in 11% account is $10000