Answer:
6) 102
7) 58
NOTE: Supplementary add to 180° and Complementary add to 90°
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Step-by-step explanation:
Answer:
c
Step-by-step explanation:
The volume (V) of a square based pyramid is calculated as
V =
Ah ( A is the area of the base and h is the height )
Here V = 1350, thus
× 15²h = 1350 ( multiply both sides by 3 to clear the fraction )
225h = 4050 ( divide both sides by 225 )
h = 18 ft → c
15 committees can be selected from a group of 6 people: 6×5×4×3/(4×3×2×1)=15. This the same as considering 2 people who aren’t selected: 6×5/(2×1)=15.