7. y = 1, AB = 1, BD = 10 and AD = 11
8. x = 5, AB = 20 and BC = 20
9. x= 5 and AB = 33
10. No, because AC = 12.5 while AB + BC = 20 (they should equal the same and they don't.)
<h2>
Answer:</h2>
The answer is 25 minutes
<h2>
Step-by-step explanation:</h2>
As we see the median time given in minutes before the installation was 53 minutes and after the installation it became 28 so by taking the difference which is 53 - 28 gives us 25 minutes.
Difference would be 1000x3.0 - 8.8x10000 = -85000
Scientific notation would be 8.5x10^-4
Draw the dilation image of the triangle with a center at the origin and a scale factor of two.
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B. if two lines are perpendicular, then they intersect to form four right angles.
