#17 ussessmentyshowtest.php?action-skipkto-16 regen-16 Due Su 04 15/2018 11:59 p
ID: 2912475 • Letter: #
Question
#17
ussessmentyshowtest.php?action-skipkto-16 regen-16 Due Su 04 15/2018 11:59 pm The base of a railing for a set of steps leading up to the front door of a house makes an angle of r degrees with the horizontal. Let d(z) be the horizontal distance between the two ends of the base of the railing. If the upper end of the railing is 4 feet higher than the lower end, find the positive number A such that d(r) -Acot z, and use your function to find the length of the base of the railing if z 33°. Round your answer to the nearest tenth of a foot. Base of railing d(r) - Preview d(33") Get Help:Explanation / Answer
A) tan(x)=4/d(x)
tan(330)=4/d(x)
d(x)=4/tan(330)=6.1594
Acot(x)=6.1594
at x=330
Acot(330)=6.1594
A = 6.154*tan(330) = 4
A=4
B) d(330)=Acot(330)
=4*(1.539)=6.1594
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