Estimate by first rounding each number to the nearest 1/2.

3 4/11 x 2 1/10
a. 6
b. 7
c. 9
d. 12

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3

A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3,-1), and (-6,5), respectively. which sentence about the points is true?

Maximize the lateral surface area of an inverted cone if v=27. formulas: v=pi*r^2*h/3 surface area=pi * r* sqrt of (r^2+h^2) i found that h=81/pi*r^2, but i don't know where to go after this.