The figure shows a trapezoid with sides labeled as algebraic expressions
x² - 6x + 5
4x + 2
2x - 5
x? - 10
a. create a polynomial expression that represents the perimeter of the trapezoid. give your answer in standard
form and in fully factored form.
standard form: perimeter =

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth

Suppose a laboratory has a 30 g sample of polonium-210. the half-life of polonium-210 is about 138 days how many half-lives of polonium-210 occur in 1104 days? how much polonium is in the sample 1104 days later? 9; 0.06 g 8; 0.12 g 8; 2,070 g