$U=\pi (r+h) \\\\ 16 \frac{1}{2}= \frac{22}{7}\cdot (r+2) \\\\ \frac{33}{2} : \frac{22}{7}=r+2 \\\\ \frac{\not 33}{2}\cdot \frac{7}{\not 22}=r+2 \\\\ \frac{3}{2} \cdot \frac{7}{2}=r+2 \\\\ \frac{21}{4}=r^{(4}+2^{(4} \\\\ 21=4r+8 \\\\ 4r=21-8 \\\\ 4r=13 \\\\ \boxed{r=\frac{13}{4}}$

4 0

3 years ago

Round your answer to the nearest hundreth

Juliette [100K]

Answer:

Step-by-step explanation:

Area of a circle is found by using the equation:

$A = \pi r^{2}$

Radius = 1/2 (diameter) = 1/2 (16) = 8

So plug in:

$A = \pi (8)^{2}$

A = 64 $\pi$

A = 201.06193

Rounded A= 201. 06

5 0

2 years ago

Order of operations 20/5*2

Xelga [282]

The order of operations is Parenthesis Exponents Multiplication Division Addition Subtraction For this problem, we have M and D. We first do division. Not always multiplication is first. So we divide 20 by 5, which gets you 4, and multiply by 2, which is 8. 8 IS YOUR FINAL ANSWER,

6 0

3 years ago

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A macaw's lifespan is on average about 5 times longer than a dog's

Juli2301 [7.4K]

Let M=macaws lifespan and D=dogs lifespan

M=5D
70=5D

If you want to know the dogs average lifespan then solve for D which is 14years.

7 0

3 years ago

Read 2 more answers