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lara [203]
2 years ago
5

PLEASE HELP, this is overdue and I'm struggling. In triangle EFG, E(-2, 7), F(7, -8) and G(-6, -3). Is triangle EFG a right tria

ngle? Provide proof of your yes/no answer. ​

Mathematics
2 answers:
stiv31 [10]2 years ago
4 0
It’s not because if you rotate it a bit you will see that the straight vertical side and straight horizontal side of the triangle form an acute angle, not a 90 degree angle
babunello [35]2 years ago
3 0

Answer:

  • No

Step-by-step explanation:

You may find the slopes of the segments EG and FG, the shorter sides of the triangle EFG.

Perpendicular lines have negative-reciprocal slopes.

  • m(EG) = (-3 - 7)/(-6 - (-2)) = -10/-4 = 5/2
  • m(FG) = (-3 - (-8))/(-6 - 7) = 5/-13 = -5/13

<u>The product of the slopes should be -1:</u>

  • 5/2*(-5/13) = - 25/26 ≠ -1

So the answer is No

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Sloan [31]

The degenerate conic that is formed when a double cone is sliced at the ap-ex by a plane parallel to the base of the cone is a <u>Point</u>.

<h3>What degenerate conic is formed?</h3>

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2 years ago
A computer online service charges one hourly rate for regular use but a higher hourly rate for designated "premium" areas. One c
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Answer: the service charge per hour for premium services is $5.5

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Step-by-step explanation:

Let x represent the service charge per hour for premium services.

Let y represent the service charge per hour for regular services.

One customer was charged $38 after spending 2 h in premium areas and 9 regular hours. It means that

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