keyannahhaskins keyannahhaskins
  • 02-10-2018
  • Mathematics
contestada

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

Respuesta :

Katella
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

A equal pie r square solve for r
Y=1/2x +3 is it proportional
Anyone know this question I need answers
5 5/6 ÷ 3 3/4 - 2/9=
Please help I would appreciate it
Last year, 648 companies had stands at a technology show. This year, there are 179 new stands. How many stands are there in total?
what is the midpoint of ab if(-1,4) and b(-7,-13)
f(x) = -x² + 6 Find f(-3).
Solve the inequality −5(x + 2) < −5x + 8.
Why is the Wart unable to bring sir Kay’s sword back to him?