Answer:
49/4
Step-by-step explanation:
x^2+7x=4
Take the coefficient of x
7
Divide by 2
7/2
Then square it
(7/2) ^2 = 49/4
Add this to both sides of the equation to complete the square
Answer:
About 113.1
Step-by-step explanation:
Area of a circle= πr2
Radius= 6
6x6=36
36π= About 113.1
I think 10.5 is the right answer.
Hey there! :)
The formula for finding volume of a cone = (π · r² · h) ÷ 3
π = 3
<em>Remember that d is 2x the r. To find r when given d, divide by 2</em>
d = 3
3 ÷ 2 = 1.5
h = 8
3 × 1.5 × 8 = 36
36 ÷ 3 = 12
The volume is 12 in³
Hope this helps :)