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nikdorinn [45]
3 years ago
9

Need help with some practice questions since all are different types I'm asking alot sorry!​

Mathematics
1 answer:
sasho [114]3 years ago
3 0

Answer:

Yes

Step-by-step explanation:

If they're perpendicular, that means that angle ECM = 90 degrees and angle ACE = 90 degrees. To figure out if this works, plug that into the two equations they give:

ECM = 3x + 15

becomes

90 = 3x + 15

75 = 3x

25 = x

ACE = 4x - 10

becomes

90 = 4x - 10

100 = 4x

25 = x

Since you get x = 25 for both, you know that they are perpendicular because they both measure 90 degrees

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Now substitute y in one of the two equations given you prefer:
For example x-2*(-2) = -8
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3 years ago
Factor completely 3x2 + y. x(3x + y) y(3x2) xy(3x + 1) Prime
Rainbow [258]

Answer:

Option (d) is correct.

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Step-by-step explanation:

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5 0
3 years ago
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Nikolay [14]

Answer:

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Answer:

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