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

My boss is pregnant is it ok to knit him and his husband a baby sweater?

Gavin was thinking of a number. Gavin subtracts 10 from it and gets an answer of 2.7. What was the original number?

The measure of an angle is 34.6°. What is the measure of its complementary angle?

HELP ASAP ELA POEM!!!!! I will give brainlist the the first person!!! Write your own poem imitating Mary Oliver poem called "the wild geese" by following this f

I need help with project

What is the length of BD? What is the length of segment AC? What is the area of the triangle ABC?

y = -x + 3 2y + 2x = 4

Mikaela purchased a paddleboard originally priced at $899. If all merchandise was on sa spent on the paddleboard? $385.67 $424.78 $578.51 $604.58

Convert the population of Texas to Scientific notation. There are 28,000,000 people living in Texas.

A barbar wants to set up a salon in a room measuring length of 3m by 3m .He has a simple wooden chair,3 large mirrors and one bulb . a) using the knowledge of s