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3 years ago

Write the equation of a line perpendicular to y=2x-5 that passes through the point (-2,5)

Mathematics

1 answer:

yawa3891 [41]3 years ago

3 0

y = mx + b

The product of slopes of perpendicular lines is -1. The slope of the given line is 2, so the slope of the perpendicular line is -1/2.

y = (-1/2)x + b

Now use the given point to find b and finish from here.

-5 = (-1/2)(2) + b

b = ?

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Sonbull [250]

Answer:

Yes, but only if BC ≅ DC; Option B

Step-by-step explanation:

There are 4 possible ways to determine whether two triangles are congruent, and they are the following ;

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It is known here that we must prove these triangles congruence through SSS. A triangle can thus be made possible through the congruence of corresponding sides;

Now if we were to create these triangles it would be that BC and DC are, if the triangles were to coincide with one another, the apparent same length if it were that these two Δs really are ≅. Thus;

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3 years ago

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borishaifa [10]

Answer:

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alexdok [17]

Answer:

Answer:

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Step-by-step explanation:

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2 years ago

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3 years ago

Read 2 more answers

Can you help me with this

MrRa [10]

Answer:

p(x - 4) = x³ - 12x² + 48x - 69

Step-by-step explanation:

To evaluate p(x - 4), substitute a = x - 4 into p(a), that is

p(x - 4) = (x - 4)³ - 5

= (x - 4)(x - 4)(x - 4) - 5 ← expand 2nd/ 3rd factors using FOIL

= (x - 4)(x² - 8x + 16) - 5 ← distribute parenthesis

= x³ - 8x² + 16x - 4x² + 32x - 64 - 5 ← collect like terms

= x³ - 12x² + 48x - 69

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3 years ago