True or False. Shapes that have at least one right angle also have at least one pair of perpendicular lines. Explain your thinking.

True

Step-by-step explanation:

In geometry, the property of being perpendicular is the relationship between two lines which meet at a right angle.

True because a right angle can't exist with any parallel lines.

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

40 i don’t know lololol