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which pairs of rectangles are similar polygons? picture below

I would say A and C.

Step-by-step explanation:Looking at the rectangles they would have to multiply and divide at the same rate, so looking at rectangle A and C, both sides divided by 9 on rectangle A would give you the side lengths to C.

100 divided by 9 is 90.

80 divided by 9 is a few decimals below 72 even though it is not exactly 72.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

ljn

step-by-step explanation: