Answer:
166 2/3π
Step-by-step explanation:
Area: 4πr² = 100π
r² = 25
r = 5
Volume = 4/3 * π * 5³ = 500/3 π = 166 2/3π
Sorry I cant answer it as i dont understand the question im so sorry :(
Answer:
x+x+x+x = 4x
5x ≠ x+5
Step-by-step explanation:
x+x+x+x, there are 4 x's, which means they equal to 4x
5x means there are 5 x's, so 5x = x+x+x+x+x, not x+5.
Answer:
y = 1/2x + 6
Step-by-step explanation:
y = 1/2x + b
5 = 1/2(-2) + b
5 = -1 + b
6 = b
Answer:
w = 3
l = 10
Step-by-step explanation:
l = 4w-2
P = 26cm
P = (l + w) × 2
26 = (4w-2+w) ×2
26 = (4w + w - 2) × 2
26 = ( 5w - 2 ) × 2
26 ÷ 2 = 5w -2
13 = 5w - 2
13 + 2 = 5w
15 = 5w
w = 3
l = 4w - 2
l = (4 × 3) -2
l = 12 - 2
l = 10
