A) 5/100 x 420 = 21
21 x 12 x 3= 756
420 x 12 x 3 = 15,120
15,120+756= 15,876
b) 4/100 x 420= $16.8
Perpendicular because the slopes are different and on is negative and the other positive.
Answer:
2384.83 cm³
Step-by-step explanation:
Volume = πr² * h
Volume = 3.14 * 7² * 15.5
Volume = 3.14 * 49 * 15.5
Volume = 2384.83
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Answer:
V= (pi) (r squared) (h)
Step-by-step explanation:
