Answer:
Step-by-step explanation:
40 degrees
Answer:
23.6 (approximate value)
Step-by-step explanation:
- a*a+b*b=c*c Pythagorean thereom
- (21.5)^2 + b*b = (31.9)^2
- b*b= 1017.61 - 462.25
- √b*b= √555.36
- b=23.6(approximate value)
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Answer:
x = -2
Step-by-step explanation:
Answer:
b. 80
Step-by-step explanation: