Rationalizing the denominator, simply means "getting rid of that pesky root at the bottom", and we do so by simply multiplying it by something to take it out, of course, we multiply the bottom, we have to also multiply the top,

Answer:
1256 ft²
Step-by-step explanation:
20 ÷ 2 = 10
4πr²
4 × 3.14 × 10²
4 × 3.14 × 100
4 × 314
1256

The positive integer is 6.
The consecutive integers are 6 and 7.
Answer:
Step-by-step explanation:x 1/2 p=75 add that by 9
Answer:
42°
Step-by-step explanation:
8y+2(5y-18)=180
8y+10y-36=180
18y-36=180
18y=216
y=12
Plug y back into the equation for angle O
5(12)-18=42