Solve the following equation using any method: - 2x^2 - 4x = 6.
Answer choices:
A. x=-1+square root 2i
B. x=-3 or x=1
C. x=+ square root 2i
D. x=1+ square root 2i

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?