Brendan is a college student who works two part-time jobs. As a teaching assistant, he earns $18 per hour. As a dishwasher at a local. restaurant he earns $12 per hour. Because of classes, he can only work a maximum of 15 hours per week. Brendan needs to earn at least $200 per week to cover his expenses. Using the graph. which of the following ordered pairs represents solutions to this inequalities? Select all that apply
(0,10)
(5,12)
(8,6)
(10,4)
(12,5)
(15,2)

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,