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ElenaW [278]
3 years ago
11

What is the first step to solve the equation x^2-3=15​

Mathematics
2 answers:
Otrada [13]3 years ago
6 0

You will need to add 3 to each side.

x^2-3=15

    +3   +3

x^2=12

and go from there

Vanyuwa [196]3 years ago
5 0

Answer:

<h2>C. Add 3 to both sides of the equation.</h2>

Step-by-step explanation:

x^2-3=15\qquad\text{add 3 to both sides of the equation}\\\\x^2-3+3=15+3\\\\x^2=15\to x=\pm\sqrt{15}

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In the function f(x) = 4(x2 − 6x + ____) + 20, what number belongs in the blank to complete the square?
Shkiper50 [21]
Hello :
f(x) = 4(x2 − 6x + 3² - 3²____) + 20 = 4((x2 − 6x + 3²) - 3²____) + 20<span>
      = 4(x-3)² -36+20
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6 0
3 years ago
Peter is 13 years old peters father is 6 years more than twice her age. how old is Peter's father​
ZanzabumX [31]

Answer:

32 years old.

Step-by-step explanation:

13 times 2 is 26, and 6 added to 26 is 32.

I hope this helps, have a nice day.

4 0
3 years ago
Discuss on piazza but do not submit. Divide [-2,2] into (a) 10 subintervals (b) 1000 subintervals of the same length. Then use t
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Answer:

attached below

Step-by-step explanation:

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3 years ago
5 . x^2 /x^2 for x=2
goblinko [34]

Answer:

1

Step-by-step explanation:

Hello!

Plug in 2 for x and simplify.

<h3>Evaluate</h3>
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We could have also simplified the fraction first. If a fraction has the same number in the numerator and the denominator, then it is always equal to 1, no matter what values of x.

6 0
1 year ago
Tell what number you would add to each side of the inequality. please answer ASAP
Novay_Z [31]

Step-by-step explanation:

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