How would you solve 3x^2-12=0?

1 answer:

3 0

   3x^2 - 12 = 0

Personally, I would divide each side by 3 x^2 - 4 = 0

Then I would add 4 to each side x^2     = 4

Then I would take the square root of each side: x = +4
   x = -4 .

Having found both solutions, I would relax with a cup of tea.

You might be interested in

Suppose your heart is beating 72 times per minute. At this rate, how many times will it beat in 15 minutes?

Vlad1618 [11]

Hey there!

All you need to do is multiply the beats per minute by 15 minutes.
72 x 15=1080. Your heart will beat 1080 times in 15 minutes.

I hope this helps!

8 0

4 years ago

PLS HELP. NO LINKS The area of the parallelogram is 28 square centimeters.

antiseptic1488 [7]

Parallelograms are shapes with four sides where each pair of sides is parallel. The sides do not have to connect at right angles. The area of a parallelogram is b × h, where b is the base and h is the height.

8 0

3 years ago

Mr. Kershner is a school nurse. He uses, on average, 24 self-adhesive bandages during each spring month: March, April, and May.

Furkat [3]

Answer:

168

Step-by-step explanation:

24 times 3 is 72 then also 24 times 4 is 96 add that and get 168

6 0

3 years ago

Read 2 more answers

Line XY is perpendicular to line CD at D. Which conclusion can be drawn?

guapka [62]

I have attached the choices given for this question

Answer:
measure angle XDC = 90 degrees

Explanation:
The term "perpendicular" implies that the angle formed between the two lines is 90 degrees.
These two lines do not have to be equal in length, they just intersect forming a 90-degree angle.

Comparing the explanation with the given choices, we would find that the only correct choice is:
measure angle XDC = 90 degrees

Hope this helps :)

8 0

4 years ago

PA = 12 cm; LY = 6 cm

ikadub [295]

Answer:

36 cm^2.

Step-by-step explanation:

The area is half the product of the lengths of its diagonals.

(PA)(LY) = (12cm)(6cm)

= 72 cm

72cm ÷2= 36 cm^2

Therefore the area is 36 cm^2

7 0

3 years ago