Question

Someone Please please let me understand !!

Answer 1

45

Explanation:

7^2 + b^2 = 10^2

49 + b^2 = 100

b^2 = 51

Closest integer for b^2 is 7/

Answer 2

44.4°

Explanation:

`\sin \: m\angle H = (7)/(10) \\ \sin \: m\angle H = 0.7 \\ m\angle H = { \sin}^( - 1) (0.7) \\ m\angle H = 44.427004001 \\ \huge \red{ \boxed{m\angle H = 44.4 \degree}}`