Gertrude is deciding which cell phone plan is the best deal for her to buy. Super Cell charges a monthly
fee of $10 and also charges $0.15 per call. She makes a note that the equation is M = $0.15C + $10.
where M is the monthly charge, in dollars, and C is the number of calls placed. Global Cellular has a plan
with no monthly fee but charges $0.25 per call. She makes a note that the equation is M = $0.25C, where
M is the monthly charge, in dollars, and C is the number of calls placed. Both companies offer unlimited
text messages.
Type your answer to c - which cell phone plan is a better buy for Gertrude? Be specific.

d

step-by-step explanation:

the solution is in the picture

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct

step-by-step explanation:

at each of the parallel lines adjacent angles are supplementary. the angles have special names identifying their positions with respect to the parallel lines and transversal. they are corresponding angles, alternate interior angles, or alternate exterior angles. an angles is congruent to its matched angle.

h * s * a

h = history teacher

s = science teacher

a =   art teacher.

i see no data table, but just multiply the number of history teachers, science teachers, and art teachers.