brianrodriguez2005
12.08.2020 •
Mathematics
A ladder leans against a vertical wall and makes an angle of 76° with the ground. The foot of the ladder is 1.8
m from the base of the wall. Determine the vertical distance from the ground to the top of the ladder, to the
nearest tenth of a metre.
a. 0.4 m
c. 4.0 m
b. 1.8 m
d. 7.2 m
a
Ob
d
Solved
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Ответ:
Ответ:
Ответ:
to find the slope from 2 points you do
(y1-y2)/(x1-x2)
x1 means the first x, not x^1 and same for others so
(x,y)
(1,-3) and (3,-5)
y1=-3
y2=-5
x1=1
x2=3
subsitute
(-3-(-5))/(1-3)=(-3+5)/(-2)=(2/-2)=1/-1=-1
the slope is -1 A