Here we would use the idea that the post and its shadow form a triangle and the tree and its shadow form a triangle and the side lengths of these two triangles are of the same ratio, ie. if the height of the tree is given by h then:
5/8 = h/48
h = 48*(5/8)
h = 6*5 = 30
Thus the tree is 30 ft tall
(6x-2)+20=90
(6x-2)=90-20
6x-2=70
6x=70+2
6x=72
x=12
Answer:
A
Step-by-step explanation:
The answer is -12
these are the steps on how to find that
-2x2y
-2(-3)2(y)
6 times -2
-12
Answer:
C. 20
Step-by-step explanation:
