Mary is looking up at a skyscraper. Her vision is perfectly aligned with the top of the skyscraper. She is 400 feet from the center of the skyscraper. The skyscraper is 850 feet. At what angle is Nancy looking up at the skyscraper? Round your answer to the nearest tenth.

A) 25.2

B) 25.3

C) 64.8

D) 74.8

64.8

Step-by-step explanation:

first you draw out the problem and label the sides of the triangle. since you are finding an angle you use the -1. so looking at the triangle you know that it will be Tan^-1 (Opposite/adjacent). so you write the problem

tan^-1(850/400)= 64.79887635

rounded to the nearest tenth would equal

64.8.

so your answer is 64.8.

Hope this helps! :)

y=mx+b

step-by-step explanation:

m is slope, b is y-intercept

(- 1, 0 )

step-by-step explanation:

an x- intercept is where the function crosses the x- axis.

to find the x- intercept/s look for the value of x when f(x) = 0

from the given table there are 3 values of x where f(x) = 0

when x = - 1, x = 2, x = 3

the one that is listed is (- 1, 0 )