Answer:
<em>2.5</em>
Step-by-step explanation:
y2 - y1 = top
x2 - x1 = bottom
<em>y2 = -5</em>
<em>y1 = -7.5</em>
<em />
<em>x2 = -2</em>
<em>x1 = -3</em>
<em />
<em />
-5-(-7.5) = 2.5
-2-(-3) = 1
2.5 over 1 = 2.5
Make each known side into a ratio like so...
75/6
(Because 75 is the shadow casted by the building, and 6 is the shadow casted by sarah)
and 50/x
(50 is how tall the building is and sarah's height is what needs to be found)
Therefore,
75 50
---- -----
6 x
Do cross products;
50 x 6 = 75 x X
300 = 75x
Divide by 75
x = 4ft
The answer is 492.307
The number after the thousandths is 9 - greater than 5 - so we round 6 up to 7.
The first thing you should do is use the method of variable separation. Then, integrate both sides to find the solution.
In this case the answer is
<span>D. - 1/y = 3x4/3 + C</span>
I attach the solution