cheesedoodle
cheesedoodle cheesedoodle
  • 24-03-2019
  • Mathematics
contestada

What is the value of y? 3y^2 − 6 = 42

Respuesta :

Mistystar4881
Mistystar4881 Mistystar4881
  • 24-03-2019

Hey there!

Let's start by adding 6 to both sides of the equation to eliminate the -6.

3y^2 = 48

Next, let's divide both sides by 3 to eliminate the 3.

y^2 = 16

Find the square root of both sides.

y = ±4

It can be both positive or negative 4 because -4 x -4 and 4 x 4 both equal 16.

The value of y is ±4.

Hope this helps!

Answer Link

Otras preguntas

i’m struggling so much please help
Identify the cellular structures and it’s functions
What is 10 to the 3rd power
what helps to sleep better at night?
Find the slope represented in the table below
66.6% as a fraction?
She wanted to throw an end-of-summer pool party.
A rocket accelerates steadily for 2 minutes with an acceleration of 0.3m/s2. If the rocket started at rest, what is its final speed? ​
Opinions on Requiring notification to parents or guardians in cases of abortion.
What is 1.004 in scientific Notation?​