I don't understand how to find the vertex and the vertex equation

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value

company a

step-by-step explanation:

using the linear regression models , it is found that company a   pays about $14 more. but using the same regression (linear) company b pays about $10 more.

so company a pays more than b

answer: (1,3) (3,-1) (5,-5) ?

step-by-step explanation:

the answer is 8.64

step-by-step explanation: