Answer:
C
Step-by-step explanation:
SA=4*pi*r^2
SA=4*pi*2^2
SA=4*pi*4
SA=16*pi m^2
SA≈50.2654824574
SA≈50.3 m^2
Which is C
Answer:
Step-by-step explanation:
assuming it is 
Using Quadratic formular -
a - 1
b - 8
c - 4




9/10 is the answer. 7/8 is 70/80 and 9/10 is 72/80
Answer:

Step-by-step explanation:
Notice from the attached image that -315 degrees is the same as 45 degrees.
Recall as well that the csc function is defined as the reciprocal of the sine function: 
Then, you need to evaluate 