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3 years ago

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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4 years ago

A business could not collect $5,000 that it was owed. The total owed to the business was $100,000. What fraction of the total wa

son4ous [18]

Total owed to the business = $100,000

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2 years ago

What is 2x-6+7=4x+4-2 equal to?

Hatshy [7]

Answer:

x=(-2)

Step-by-step explanation:

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5 0

3 years ago

Given: F(x) = 5x - 6 and G(x) = x - 4

fomenos

Answer:

Correct choice is $\dfrac{x+26}{5}$

Step-by-step explanation:

1. If $F(x)=5x-6,$ then you can find the inverse $F^{-1}(x):$

$y=5x-6,\\ \\5x=y+6,\\ \\x=\dfrac{y+6}{5},\\ \\F^{-1}(x)=\dfrac{x+6}{5}.$

2. If $G(x)=x-4,$ then

$y=x-4,\\ \\x=y+4,\\ \\G^{-1}(x)=x+4.$

3. Hence,

$G^{-1}(F^{-1}(x))=G^{-1}\left(\dfrac{x+6}{5}\right)=\dfrac{x+6}{5}+4=\dfrac{x+26}{5}.$

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4 years ago

Two trains, Train A and Train B, weigh a total of 207 tons. Train A is heavier than Train B. The difference of their weights

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Answer:

A) 184.5 B)22.5

Step-by-step explanation:

207/2= 103.5

A is heavierand the diference of their weights is 81 tons A is 103.5 plus 81 tons or 184.5

And B is 103.5 minus 81 tons or 22.5 tons

5 0

3 years ago

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

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