Answer:
Step-by-step explanation:
Comparing the triangles in the given questions, the following can be deduced:
5. The scale factor =
=
≠ 
So that;
QR is similar to UT, PR is similar to US, but PQ is NOT similar to TS.
Thus, the triangles are NOT similar.
6. Scale factor =
=
= 
= 1.5
So that;
QR is similar to UT, PR is similar to US, but PQ is similar to TS.
Thus, the triangles are similar by Side-Side-Side (SSS).
7. Here, an exact scale factor can not be determined. Thus, the triangles are NOT similar.
Answer:
34
Step-by-step explanation:
x - 9 = 25
x=25+9
x=34
Answer:
(x,y) = (-6,-5)
Step-by-step explanation:
If you need the explanation let me know.
Group terms that have factorable coefficients (like 2&4 and then 9&18)
(4x³ + 2x²) + (-18x - 9)
factor out the like terms
2x²(2x + 1) - 9(2x +1)
parenthesis are the same so you can factor further.. {Like 2x+3x = (2+3)x}
(2x² - 9)(2x+1)
Factored too far they only want Answer C. is the correct one for grouping