Which of the following shows that EFGH is a parallelogram for y=7 and z=9?

Option B: and , so is supplementary to both and , so EFGH is a parallelogram.

Option C: so EFGH is a parallelogram.

Option D: so EFGH is a parallelogram.

Explanation:

Option A: and so is supplementary to both and , so EFGH is a parallelogram

Let us substitute and in , and to determine the exact measures the angles of the parallelogram.

Substituting, we get, ,

Thus, because the measures of these angles are not equal.

Hence, Option A is not the correct answer.

Option B:   and , so is supplementary to both and , so EFGH is a parallelogram.

Let us substitute and in , and to determine the exact measures the angles of the parallelogram.

Thus, substituting, we have, ,

Hence, Option B is the correct answer.

Option C: so EFGH is a parallelogram.

To determine the angles, let us substitute in   and

Thus,

Since, the opposite angles of a parallelogram are equal, EFGH is a parallelogram.

Hence, Option C is the correct answer.

Option D: so EFGH is a parallelogram.

Let us substitute and in , and to determine the exact measures the angles of the parallelogram.

Substituting, we have, ,

Adding the angles E and G, we have,

By the property of parallelogram, any two adjacent angles add upto 180.

Thus, the adjacent angles E and G add upto 180.

Hence, Option D is the correct answer.

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

happy to

pls mark as brainliest

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72