keyannahhaskins keyannahhaskins

02-10-2018
Mathematics

contestada

What is the value of –2x2 + 4y if x = –2 and y = 3?

Respuesta :

Katella Katella

02-10-2018

Simplify

((-2)(-2))(2)+(4)(3)

The answer is 20.

Answer Link

asmikaulgud asmikaulgud

02-10-2018

You would first substitute x and y into the equation so: -2(-2)^2+4(3)

Then you solve:

-2(-2)^2+4(3)

8+12

so your answer will be 20

Answer Link

Otras preguntas

One way to show that a statement is NOT a good definition is to find a _____ converse.conditional.counterexample.biconditional.

In Romeo and Juliet act 2, which character serves as a messenger

2(n-3)=4n+1 this sucks not knowing the answer

Why do Andhra Pradesh donot recive any snow fall during during winter months. PLEASE HELP.....EXAM TOMORROW

How many eights are there in 6 1/2

What Canadian city is across a body of water from New York

At the school carnival, Carmen sold 3 times as many hot dogs as Shawn. The two of them sold 152 hot dogs altogether. How many hot dogs did Carmen sell? 51382111

A storage tank shaped Like a rectangular prism is being manufactured to hold 100,000 cubic feet of natural gas. It has a length of 10 feet and a width of 25 fee

Kim estimates that the faucet in her kitchen drips at a rate for 1 drop every 2 seconds. Erik wants to klnow how many times the faucet drips in a week.

One-half of a number is -12. Find the solution ???