\begin{aligned} &M = -8r^2+11r-6 &T = -7r^2-9r+14 \end{aligned}

M=−8r
2
+11r−6
T=−7r
2
−9r+14


M+T=M+T=M, plus, T, equals

Your answer should be a polynomial in standard form.

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Mr. thompson is on a diet. he currently weighs 260 pounds. he loses 4 pounds per month. what part of the story makes the relationship not proportional?

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.