They are 90* because perpendicular sides form a right angle hope this helped have a great day!!!
2x-y=4
Therefore: y=2x-4
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5x-10/4(2x-4)=10
5x-5/2(2x-4)=10
5x-5x+10=10
10=10
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*Problem can't be solved.
(Y1-Y2)/(X1-X2)
(2-4)/(-2-3)
-2/-5
2/5
Answer:

Step-by-step explanation:
We can try and isolate m on one side of the equation by following the rules of simplifying equations.

Hope this helped!
14. The equation would be -16t^2+60t+7 To find the maximum point plug in values into the equation -b/2a to find the axis of symmetry, and plug that number in for t.
b=60, a=-16
-60/-32=t=1.875
-16(1.875)^2+60(1.875)+7=63.25
Maximum point: (1.875,63.25)
The ball will land after about 3.86 seconds