13 A 14-foot ladder is set up 4 feet from the base of a building. How far up the building does the ladder reach? Round your
answer to the nearest tenth of a foot.
A 13.4 feet
B
14.6 feet
16.5 feet
D 18.0 feet

A 13.4

Step-by-step

a^2 + b^2= c^2 4^2 + b^2 = 14^2 16+ b^2= 195 b^2= 180 b= square root of 180 b= 6 square root of 5 or 13.42

i think it's b

step-by-step explanation:

because the graph is 2 above (0,0)

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i