the formula is (degree)x(pi÷180)
36 x pi ÷ 180
0.63 rad
It has a 31% chance. i used a calculator. so i guess the best answer is B.
When they work together, it takes John 1/x hours and it takes Brian 1/(x+15) hours to complete 1/4 of the model.
1/x + 1/( x+15 ) = 1/4 / · x ( x+15 )
x+15 + x = x ( x+15 ) /4 / · 4
8 x + 60 = x² + 15 x
x² + 15 x - 8 x - 60 = 0
x² + 7 x - 60 = 0
x² + 12 x - 5 x - 60 = 0
x · ( x + 12 ) - 5 ·( x+ 12 ) = 0
( x + 12 ) · ( x - 5 ) =0
x = - 12 ( not accepted ) or x = 5
The time taken by Brian: 5 + 15 = 20 hours
Answer:
6.05 units
Step-by-step explanation:
We are given that radius,r=3 units
Volume of cone=57 cubic units
We have to find the height of cone.
We know that
Volume of cube=
Where
Using the formula
h=6.05 units
Hence, the height of cone=6.05 units
-9 if I did the math right.