Answer:17
Step-by-step explanation:
Answer:
M = 20
Step-by-step explanation:
Given that M is directly proportional to r³ then the equation relating them is
M = kr³ ← k is the constant of proportion
To find k use the condition when r = 4, M = 160, that is
160 = k × 4³ = 64k (divide both sides by 64 )
2.5 = k
M = 2.5r³ ← equation of proportion
When r = 2, then
M = 2.5 × 2³ = 2.5 × 8 = 20
Answer:
(5,10)
Step-by-step explanation:
Midpoint = (x1+x2)/2 , (y1+y2)/2
3n + n = 180
4n = 180
n = 180/4
n = 45
hope it helps, brainliest pls!
