Trevor plans to solve the system of equations using elimination. Which of the following represents a reasonable first step Trevor could take? 2x − 3y = -10
4x + y = 8

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

Write the pair of fractions as a pair of fractions with a common denominator

A11 gram sample of a substance that’s used to treat thyroid disorders has a k-value of 0.1247