\qquad\begin{aligned} \dfrac25n+7&=12 \\ \dfrac25n&=5&\green{\text{S tep } 1} \\ n&=2&\blue{\text{Step } 2} \end{aligned} 5
2

n+7
5
2

n
n


=12
=5
=2

The quadratic function h(t) = -16.1t^2 + 150 models a balls height, in feet, over time, in seconds, after its dropped from a 15 story building. from what height in feet was the ball dropped?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no