Select the correct answer. The perimeter of a rectangle is 42 inches. If the width of the rectangle is 6 inches, what is the length?
ОА.
12 inches
OB.
15 inches
O c.
21 inches
OD
40 inches

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.

If (x + 8) is a factor of f(x), which of the following must be true? both x = –8 and x = 8 are roots of f(x). neither x = –8 nor x = 8 is a root of f(x). f(–8) = 0 f(8) = 0