Pls help! correct answer will get brainliest :)

Step-by-step explanation:

Since DB bisects , . Therefore, .

From the isosceles base theorem, the measure of the angles adjacent to the congruent sides of an isosceles triangle are equal. Therefore, we can write the following equation:

.

the first dot plot best represents the data

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-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.