The light from the lamp casts a shadow of a man standing 15ft away from the lamppost, the shadow is 5ft long. The angle of eleva
tion from the tip of the shadow to the lamp is 50degrees. To the nearest foot, the lamppost is how tall?
1 answer:
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ANSWER
The correct answer is C
EXPLANATION
We want to find the quotient:
We multiply by the reciprocal of the second fraction:
We cancel out the common factors to obtain:
We multiply to get
This simplifies to :
The correct answer is C
Step-by-step explanation:
if b+c=0
b=-c
x^b=x^-c
so
1/[2(x^b)+1]
