Dr. black is standing 13 feet from the streetlamp. the lamp is making his shadow 9 feet long. he estimates that the angle of elevation from the tip of his shadow to the top of the streetlamp is 50 degrees. to the nearest foot, the streetlamp is about

13 + 9 = 22 feet

the angle is 50 degrees

 multiply 22 x tan(50) to find the height of the lamppost

22 x tan(50) = 26.21

 so the lamppost is about 26 feet tall

d i think

step-by-step explanation:

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb