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

solve the trinomial 10b2 +17b + 3

The shorter leg of a 30 60 90 triangle is 6.4 inches long. Find the perimeter.

Express the radical using the imaginary unit, i. Express the answer in the simplest form.

what is the difference between 589.01 and 0.210

What forces keep balanced rock in a canyon in Idaho balanced on it'so tiny pedestal

In which scandal was Lt. Colonel Oliver North implicated?

At Teotihuacán, a Mesoamerican city, people worshipped many gods and constructed large pyramids devoted to the sun, to the moon, and to? A.) Quetzalcoatl B.) Ma

____ like cocaine and amphetamines, affect a persons perception, mood and attention span, and can make the person over-confident and more likely to take risks b

Cellular respiration. Is essentially the reverse of photosynthesis

In 2012 Obama receiver 65,899,660 votes and Romney received 60,932,152 votes. In this election, if a voter for either Obama or Romney is chosen at random what i