How do the graphs of f(x)=x^3 and g(x)=(1/2x)^3 relate?
1 answer:
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Answer:
The depth is 127 inches.
Step-by-step explanation:
The stairway and its depth can be compared to a right angled triangle. Let the depth be represented by d.
But,
12 inches = 1 foot
20 ft 6 in = 20 +
= 20.5 feet
So that applying the appropriate trigonometric function, we have;
Sin θ =
Sin 31º =
d = 20.5 x Sin 31º
= 20.5 x 0.5150
d = 10.5575
d ≅ 11 feet
Therefore,
d = 10.5575 feet = (10.5575 x 12) inches
= 126.69 inches
The depth is 127 inches.