$\bf \textit{circumference of a semi-circle}\\\\
C=\pi r\qquad 
\begin{cases}
r=radius\\
-----\\
C=5.14
\end{cases}\implies 5.14=\pi r\implies \boxed{\cfrac{5.14}{\pi }=r}\\\\
-------------------------------\\\\
\textit{area of a semi-circle}\\\\
A=\cfrac{\pi r^2}{2} \implies A=\cfrac{\pi }{2}r^2\implies A=\cfrac{\pi }{2}\left( \boxed{\cfrac{5.14}{\pi }} \right)^2
\\\\\\
A=\cfrac{\pi }{2}\implies \cfrac{5.14^2}{\pi ^2}\implies A=\cfrac{26.4196}{2\pi }\implies A=\cfrac{13.2098}{\pi }$

5 0

2 years ago

Sandy has $5000 invested in three accounts. One account bears 2% annual interest, another 3%, and the other 5%, and she earned $

Harlamova29_29 [7]

hello there

This is a tricky question but i think i have solved it

Account 1: $100

Account 2: $150

Account 3: $250

If my answer helped please mark me as brainliest thank you and have a great day!

4 0

2 years ago