Answer:
25% a b i dont know
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
a. 3x7=21
b. 5x7=35
c. 7x7=49 [only one correct]
d. 9x7=63
e. 12x7=84
Answer:
The radius, r₂, of the ball that uses one-half the amount of rubber coating used to cover the 16-inch ball is approximately 4.66 inches
Step-by-step explanation:
The dimension of the ball with known radius = 16-inch
The surface area of the ball with 16-inch radius = 4×π×r² = π·D² = π×16² = 804.24772 in.²
Given that the ball uses one-half the rubber material coating used to cover the 16-inch ball, we have the surface area of the ball = 804.24772 in.²/2 = 402.12386 in.²
The radius, r₂ of the new ball is found as follows;
402.12386 in.² = 4×π×r₂²
r₂² = 402.12386 in.² /(4×π) ≈ 32
r₂ = √32 = 4·√2 ≈ 4.66 inches
The radius, r₂, of the ball that uses one-half the amount of rubber coating used to cover the 16-inch ball ≈ 4.66 inches.
7 9/13
= (7×13)+9/13
= 91+9/13
= 98/13 (as an improper fraction).
12-(12 divided by z) make sure divided by is not in words :)hope it helped
