PLZ GUYSS HELP I NEED THIS TEST Use the given angle measures to answer the following questions.

M M
Activity 1 of 2
Part A: If Angle A and Angle B are vertical angles, what is value of x?

A.
8

B.
28

C.
35

D.
10

Activity 2 of 2
Part B: If Angle A and Angle B are supplementary angles, what is measure of Angle B?

A.
180º

B.
28º

C.
140º

D.
90º

answer: i guess 105 degrees?

step-by-step explanation:

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

a

step-by-step explanation: