Answer:
789
.5 is a 5 or larger so the 8 goes to a 9
Step-by-step explanation:
Answer:
Factoring in groups is like breaking it apart piece by piece and takes more steps.
Factoring the difference of two squares takes few steps and is easier.
The answer is 4
Because 0.5 times 4 is 2
Answer: 7.5
Step-by-step explanation:
use pythagorean theorem
13^2 + b^2 = 15^2
- 13^2
b^2 = 56 - square root
= 7.5
