A cell phone plan let's you choose how many minutes are included each month. the table shows the plans monthly cost for a given numbers of included minutes x. A) if you don't use any minutes, how much do you spend? B) what do you pay per minute? C) how much will you spend for 250 minutes? minutes included, x(100,200,300,400,500) cost of plan ($),y( 14,20,26,32,38)

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

(w – 2.5)(w + 2.5)

(–4v – 9)(–4v + 9)

step-by-step explanation:

kjgfcvbjkl

step-by-step explanation:

sdfghjkl; vbnm,

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus