Step-by-step explanation:
90+115+65=270
360-270=90
Answer:
U=90°
Answer:
part 1; x=4,−3
part 2: im not sure
x < 0 or x > 10
Step-by-step explanation:
B= 30
a2+b2=c2
72^2+b^2 = 78^2
5184+b^2 = 6084
b2 = 900
b = 30
Answer:54
Step-by-step explanation:
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