Either a or b. C and d don’t make sense cuz there’s no way those lines are perpendicular
Jean-Paul's error is that he should have written the second equation as h = 4 p + 2.
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<h3>How to solve an equation?</h3>
The hardcover book is $8 each and paperbacks for $4 each.
The number of hardcover books, h, sold one day was 2 more than four times the number of paperback books, p, sold that same day.
Therefore,
h = 4p + 2
Hence,
8h + 4p = 160
Therefore, the right equation are as follows:
h = 4p + 2
8h + 4p = 160
Hence, Jean-Paul should have written the second equation as h = 4 p + 2.
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Hey!!
Total angle - 180
... 2x + 4 + 2x - 9 + x = 180
... 4x - 5 + x = 180
... 5x - 5 = 180
... 5x = 185
... x = 185 / 5
... x = 37
Hope my answer helps!!
Answer:
all of them except straight and reflex
Step-by-step explanation:
when angles are supplementary it means that they add up to 180
an acute angle is supplementary to an obtuse angle
an obtuse angle is supplementary to an acute angle
a right angle is supplementary to a right angle
but a reflex angle is over 180 so it's not supplementary to anything
and a straight angle is already 180 so it has no supplements either
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