Answer:
A. 15
Step-by-step explanation:
Hypotenuse = 22
Since the two angles other than the 90° are both
45° , it means that the two legs of the right triangle are of equal length.
So, (x)²+ (x)² = 22²
2x² = 22²
x² = 484/2
x² = 242
x = √242
x = 15.55
x ≈ 15
Answer:
Arithmetic, -65
Step-by-step explanation:
Use an explicit equation.
a(n) = -2-3(n-1)
Substitute 22 for n.
a(22) = -2-3(21)
a(22)=-2-63
a(22)=-65
Answer:
radius = 6 cm
Step-by-step explanation:
The volume (V) of a sphere is calculated as
V =
πr³ ← r is the radius
Given V = 288π, then
πr³ = 288π
Multiply both sides by 3 to clear the fraction
4πr³ = 864π ( divide both sides by 4π )
r³ = 216 ( take the cube root of both sides )
r =
= 6
Thus the radius of the sphere is 6 cm