Draw a picture of a building and a one mile (or 5280 feet) distance to a point from the base of the building.
The angle of elevation is given as 11° and we want the height of the building or x.
tan(11°) = x/5280
5280 tan(11°) = x
1026.3 feet = x
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2(x-3)=7x-31
2x-6=7x-31
-7x -7x
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-5x-6=-31
+6 +6
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-5x=-25
Divide by -5
x=5
3x-2(x+5)=-3+18
15
3x-2(x+5)=15
3x-2x-10=15
x-10=15
+10 +10
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x=25
Answer:
13.73 ft²
or 14 ft² if youre rounding
Step-by-step explanation:
area of circle:
A≈50.27
area of the square:
A = 64
subtract the area of the circle from the area of the square
64 - 50.27
= 13.73 , or 14 if you round it
Answer:
It is a solution
Step-by-step explanation:
y = -4x - 8
Let x = -9 and y = 28
Substitute these values in
28 = -4(-9) -8
28 = 36 -8
28 =28
This is true so it is a solution