To repair a roof that is 12 feet off the ground, Mr. Albert leans a 17 foot ladder against the side of the building. To reach the roof, how far away from the building should he place the base of the ladder.

a=12.0415946 ft

Step-by-step explanation:

a²+b²=c²

c= 17 and b= 12

a²+144=289

a²=145

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.