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Komok [63]
4 years ago
9

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

Mathematics
1 answer:
Gennadij [26K]4 years ago
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.

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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.
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I hope this helps!
8 0
4 years ago
PLS HELP. NO LINKS The area of the parallelogram is 28 square centimeters.
antiseptic1488 [7]
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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:

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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
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