Answer:
Step-by-step explanation:
Collect all variables in one side and numbers on the other side
7w-2w=-3-12
5w=-15
W=-15/5=-3
Answer=4.24
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer:
triangle ABC is "not" a right-angled triangle
Step-by-step explanation:
AB=8cm
BC=5cm
perimeter = 22cm
CA = 22 - 8 - 5 = 9
8² + 5² = 89
9² = 81
AB² + BC² ≠ CA²
Answer:
540°
Step-by-step explanation:
90 revolutions = 360°×90 = 32400°
32400° in 60 sec or 1 min
so, in 1 sec 32400/60 = 540°