Using the pythagorean theorem: c^2 = a^2 + b^2
c = 12 feet
a = 3 feet
b = x feet
12^2 = 3^2 + x^2
144 = 9 + x^2
144 - 9 = x^2
135 = x^2
x = 11.6 feet
Therefore, the answer is B.
Answer:
3052.08 m³
Step-by-step explanation:
Given that the radius is 9m, r=9.
Volume of sphere
= 3052.08 m³
Answer:
x=4/7
Step-by-step explanation:
Change mixed fractions to improper fractions
2 1/4 = 9/4
1 2/7 =9/7
Therefore, we have
9/4=9/7÷x
9/7÷x is 9/7×1/x=9/7x
Then, we have
9/4=9/7x
Cross multipy
9×7x=9×4
63x=36
Make x the subject of the formula, we have
x=36/63
x=4/7
Answer:
7a. 7b=49ab
Step-by-step explanation:
Well, a y-intercept is a the point on a graph where the x value equals 0, because the point sits exactly on the y-axis. In this case, the y-intercept would be (0, -9).
