54. D 55. J
Hope this helps! Good luck!
Answer:
A. 64 square units
Step-by-step explanation:
The area of a triangle is denoted by: A = (1/2) * bh, where b is the base and h is the perpendicular height to the base.
Here, we can say that side AB is the base with length 10, while the perpendicular segment extending from C to AB with length 12.8 is the height. Then, plug these in:
A = (1/2) * bh
A = (1/2) * 10 * 12.8 = 5 * 12.8 = 64
The answer is thus 64 square units, or A.
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Answer:
(B)
Step-by-step explanation:
v^2 = v0^2 + 2ax
a = (v^2 - v0^2) / 2x
= (20^2 - 10^2) / 200
= 1.5 m/s