Solve for x. 5(x + 1) = 4(x + 8) O x = 37 O x = 17 O x = 7 O x = 27

Mathematics

1 answer:

mario62 [17]3 years ago

7 0

Answer:

Step-by-step explanation:

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Answer:

9. Triangle ABQ is congruent to Triangle BAP because of SAS congruency

10. x=5, y isn't shown anywhere

Step-by-step explanation:

9. The side AB is shared between the two triangles.

It is given that angle A and angle B are congruent.

It is given that AQ is congruent with BP.

Using these three, you can say that Triangle ABQ is congruent to Triangle BAP because of SAS congruency.

10. 7x-4=31 (given)

x=5

Do the same thing with y.

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Given that line PN is a perpendcular bisector of line AB, then angles APN and BPN are equal to 90 degrees each.

Also, given that line PN is an angle bisector to angle CPD and angle CPD measures x, then the measure of angle DPN is $\frac{1}{2} x$ .

Thus, the measure of angle DPB = angle BPN - angle DPN
$=90- \frac{1}{2} x$

Therefore,
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The link is below

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The answer is A.
I used the formula for finding the vertex of a parabola and I got the first answer choice. So A is correct. :)

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