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Rudiy27
3 years ago
9

10+3(4-6a) = -(6a+12) i need steps too

Mathematics
1 answer:
Daniel [21]3 years ago
8 0
<h3><u>The value of a is equal to 34/12 or 17/6</u></h3>

10 + 3(4 - 6a) = -(6a + 12)

Distributive property.

10 + 12 - 18a = -6a - 12

Combine like terms.

22 - 18a = -6a - 12

Add 18a to both sides.

22 = 12a - 12

Add 12 to both sides.

34 = 12a

Divide both sides by 12.

a = 34/12 = 2.8

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If using the method of completing the square to solve the quadratic equation x^2-13x+14=0, which number would have to be added t
nevsk [136]

Answer:

169/4

Step-by-step explanation:

Take the coefficient of the x term.  Here it's -13.  Now halve that, obtaining -13/2.  Finally, square this result.  We get 169/4.  This is the desired number.

x^2 - 13x + 169/4 - 169/4 + 14 = 0

7 0
3 years ago
Hello! Please help thanks
kogti [31]

Answer:

A. \frac{5}{13}

Step-by-step explanation:

Hi there!

We are given right triangle PQR, with PR=5, RQ=12, and PQ=13

We want to find the value of sin(Q)

Let's first recall that sine is \frac{opposite}{hypotenuse}

In reference to angle Q, PR is the opposite side, RQ is the adjacent side, and PQ is the hypotenuse

So that means that sin(Q) would be \frac{PR}{PQ}

Substituting the values of PR and PQ gives sin(Q) as \frac{5}{13}, which is A

Hope this helps!

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3 years ago
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kotegsom [21]

5, 7, 9, 11, 13 add 2

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Julie has three boxes of pens. The diagram shows expressions for the number of pens in each box. Look at these equations.
vovangra [49]

Answer:

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Step-by-step explanation:

a = b + 12

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4 years ago
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