Answer:
825
Step-by-step explanation:
22/2x75
11x75
8
hyp²=a²+b²
10²=6²+b²
100=36+b²
b²=64
b=8
Answer: u=7
-6= -2u+4(u-5)
-6= -2u+4u-20
-6= 2u-20
14= 2u
7=u