Which of the following is a function? A. (1,1),(-1, 1), (2,3).(-2,1))
B. {(1,1),(-1,-1),(-1,3), (2, 2)}
C. (0-1),(0,1),(1,0),(-1,2)
D.{(0,0), (1, 1), (0, -1), (1,-1)

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

27

step-by-step explanation:

step-by-step explanation: the answer for wha if rt is 10 centimeters long, and wha is st? it’s 6