$\bf \textit{circumference of a circle}\\\\ C=2\pi r~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=87.92 \end{cases}\implies 87.92=2\pi r\implies \cfrac{87.92}{2\pi }=\boxed{r} \\\\[-0.35em] ~\dotfill\\\\ \textit{area of a circle}\\\\ A=\pi r^2~\hspace{7em}A=\pi \left( \boxed{\frac{87.92}{2\pi }} \right)^2 \\\\\\ A=\pi \cdot \cfrac{87.92^2}{4\pi^2}\implies A=\cfrac{87.92^2}{4\pi }\implies A\approx 615.127998$

6 0

3 years ago

The sum of two consecutive odd integers is 9 less than three times the first odd integer. Find the larger integer.

butalik [34]

Answer:13

Step-by-step explanation:

2x+11=3x

11=x

x+2=13

4 0

4 years ago

Please help and show work

mestny [16]

18- 5x
19- 6x
I'm not sure but I had a test like this

7 0

3 years ago

Work out (4.32 x 10-5) = (7.5 x 10-8)<br> Give your answer in standard form.

Nostrana [21]

Answer:

0=15-21.5

Step-by-step explanation:

21.5=15

0=15-21.5

7 0

3 years ago