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3 years ago

In the equation 15 - x = 2(x + 3) what is your first step? *

Mathematics

2 answers:

avanturin [10]3 years ago

6 0

Answer: Distributive Property, follow PEMDAS (the first is parenthesis)

x = 3

Step-by-step explanation:

Distribute 2 into (x-3). 15 - x = 2x + 6.
Add x on both sides. 15 = 3x + 6.
Subtract 6 on both sides. 9 = 3x.
Divide 3 on both sides. x = 3

Lemur [1.5K]3 years ago

5 0

Answer:

Your first step is to distribute the 2 in 2(x+3)

Step-by-step explanation:

The after you complete this step you will make the equation look like

- x - 2x = 6 - 15.

Work it out like you would normally do!

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Describe the transformation f(x) = √x + 1 − 5 in words. The parent function f(x) = √x has been shifted 1 unit and 5 units.

dimulka [17.4K]

Answer:

The parent function f(x) = √x has been shifted

LEFT

1 unit and

DOWN

5 units.

Step-by-step explanation:

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3 0

3 years ago

Solve for m -3/7m=12 A: M= -28 B: M= -26 C: M= 26 D: M= 28

Verizon [17]

Answer:

Step-by-step explanation:

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2 years ago

Read 2 more answers

Find the sum of the squares of the roots of 3x^2 + 4x + 12 = 0

Contact [7]

Answer:

-56/9

Step-by-step explanation:

Let p and q be the roots of the equation.

So, here's how we're gonna work it out:

${p}^{2} + {q}^{2} = \\ {p}^{2} + {q}^{2} +2 pq - 2pq = \\ ( {p}^{2} +2pq + {q}^{2}) - 2pq = \\ {(p + q)}^{2} - 2pq$

Vieta's formulas give us the sum and the product of the roots of a quadratic equation. Using them we obtain:

p + q = -b / a = - 4 / 3
p × q = c / a = 12 / 3 = 4

${(p + q)}^{2} - 2pq = \\ {( - \frac{ 4}{3} )}^{2} - 2 \times 4 = \frac{16}{9 } - 8 = \\ \frac{16 - 72}{9} = - \frac{56}{9}$

4 0

3 years ago

If you buy stock for $36.20 per share and sell that stock for $37.90 per share, what was your

Mars2501 [29]

Answer:

$1.70 per share

Step-by-step explanation:

37.90-36.20=1.70

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10 months ago

Put in order from least to greatest: quart, pint, gallon, liter, cup

cricket20 [7]

From least to greatest
1) cup
2) pint
3) quart
4) liter
5) gallon

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3 years ago