Answer:
8r+3r
Step-by-step explanation:
1. EXPONENTS----- do 4r to the 2nd and you get 16r
now you have 16r-8r+3
2.COMBINE LIKE TERMS------ 16r-8r and you get 8r
now you have 8r+3
3.8r+3
9514 1404 393
Answer:
E) 20
Step-by-step explanation:
The triangles are all similar, so the ratios of short to long sides are ...
EF/FC = CF/FD
8/CF = CF/50 . . . . . . use given values
400 = CF² . . . . . . . . . cross multiply
20 = CF . . . . . . . . . . . take the square root
I can’t find the question what is it
8k = 4/9
Divide 8 to both sides, or multiply by its reciprocal 1/8:
k = 4/9 * 1/8
k = 4/72
k = 1/18
