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vfiekz [6]
3 years ago
6

How do you get 8(c-9)=6(2c-12)-4c

Mathematics
1 answer:
kolezko [41]3 years ago
6 0
So first you factor it out:

8c - 72 = 12c - 72 - 4c

Then you isolate the c's:

-72 +72 = 12c - 4c -8c

Then you add both sides:

0 = 0c

C is equal to 0
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1. Which of the following is an arithmetic sequence?
Ronch [10]

i say C. -5, -2, 1, 4, 7 is your answer for question 1.

and for question 2 i think is E. -6, -4, -2, 0, 2.

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3 years ago
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Andrews [41]

Answer:

4:20

Step-by-step explanation:

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The value of 9−y is twice the value of y. What is the value of y?
ElenaW [278]

Answer:

y = 3

Step-by-step explanation:

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<u>Step 1:  Add y to both sides</u>

9 - y + y = 2y + y

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3 years ago
Solve for x {x+4]= 6
wlad13 [49]

The solution to the equation x(x+4) = 6 is x = -2 + √10 or x = -2 - √10 after solving with the quadratic formula.

<h3>What is a quadratic equation?</h3>

Any equation of the form \rm ax^2+bx+c=0 where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

As we know, the formula for the roots of the quadratic equation is given by:

\rm x = \dfrac{-b \pm\sqrt{b^2-4ac}}{2a}

We have an equation:

x(x + 4) = 6

By distributive property:

x² + 4x = 6

x² + 4x - 6 = 0

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Plugging all the values in the formula:

\rm x = \dfrac{-4 \pm\sqrt{4^2-4(1)(-6)}}{2(1)}

After calculating:

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\rm x=-2+\sqrt{10},\ \ \ or \ \ \ x=-2-\sqrt{10}

Thus, the solution to the equation x(x+4) = 6 is x = -2 + √10 or x = -2 - √10 after solving with the quadratic formula.

Learn more about quadratic equations here:

brainly.com/question/2263981

#SPJ1

6 0
2 years ago
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HELP PLSS<br><br> What is the slope of the line that passes through the points (-2, -5) and (6, 7)?
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slope =  \frac{7 - ( - 5)}{6 - ( - 2)}  \\

slope =  \frac{7 + 5}{6 + 2}  \\

slope =  \frac{12}{8}  \\

slope =  \frac{4  \times 3}{4 \times 2}  \\

slope =  \frac{3}{2}  \\

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