If three corresponding sides of one triangle are proportional to three sides of another, then the triangles are similar. always

sometimes

never

Always

Step-by-step explanation:

The given statement : If three corresponding sides of one triangle are proportional to three sides of another, then the triangles are similar.

It implies two triangles have corresponding sides with equal ratios .

Therefore by SSS similarity postulate, the triangles are always similar.

the correct answer option is (2x-3)(2x+3).

step-by-step explanation:

we are given the following expression and we are to factorize it:

we are to find such factors that when multiplied they give a result of 36 (9 x 4 = 36) and when added they give a result of 0.

the two such factors of 36 are negative six and postive six.

factorizing the given expression to get:

therefore, the correct factorization of is (2x-3)(2x+3).

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours