chelsearodi3985
05.11.2020 •
Mathematics
What is f(2) for the function f(x)=3x+7
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Ответ:
Step-by-step explanation:
replace 2 for x
3(2)+7
6+7
13
Ответ:
distance between the base of the ladder from the bottom of the building = 5.18ft
Height of the building = 19.32ft
Step-by-step explanation:
The distance between the base of the ladder from the bottom of the building and the height of the building is given by
d = Lcosx
h = Lsinx
Where L is the length of the ladder, d is the distance between the base of the ladder and the bottom of the building, h is the height of the building and x is the angle between the ladder and the ground.
Given; x= 75° L = 20ft
d = 20cos75 = 5.18ft
h = 20sin75 = 19.32ft