Answer:
D r = 4 − 4 cos(θ)
Step-by-step explanation:
Right on edge
Answer:
x ≈ 38.7°
Step-by-step explanation:
Using the sine ratio in the right triangle
sinx =
=
, then
x =
(
) ≈ 38.7° ( to 1 dec. place )
Answer:
25 + 25=50 Divided by 5 =10
Step-by-step explanation:
25 + 25
=50
50 DIVIDED BY 5
=10
Answer:
3.6 hours
Step-by-step explanation:
Blake can do work in hours = 9
Blake can do a part of work in 1 hour = 
Ned can paint the same room in six hours.
Ned can do a part of work in 1 hour = 
They can do a part of work together in 1 hour = 
=
Now they can do
part of work in hour = 1
So, they can do whole work in hours = 
= 
Hence it will take 3.6 hours to paint the room if they work together.