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3 years ago

What is the sum of the expression ? (9 c − 8 d ) + ( 2 c − 6 ) + ( − d + 3 )

Mathematics

2 answers:

Dmitrij [34]3 years ago

4 0

Answer:

12c - 9d + 3

Step-by-step explanation:

(9 c − 8 d ) + ( 2 c − 6 ) + ( − d + 3 )

Combine like terms ( the d's with the d's, the c's with the c's and the numbers without the variables with the number w.out the variables)

9c - 8d + 3c - 6 - d + 3

12c - 9d + 3

That is at it's simplest form

Hope this helped!

have a supercalifragilisticexpialdocious day!

Wewaii [24]3 years ago

3 0

The answer is:
5 ( 6 r - 1 ) 6

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In the parabola y = (x + 12 + 2, what is the vertex?

VladimirAG [237]

Answer:

The vertex is the point (-6,-34)

Step-by-step explanation:

we know that

The equation of a vertical parabola into vertex form is equal to

$y=a(x-h)^{2}+k$

where

(h,k) is the vertex of the parabola

In this problem we have

$y=x^{2}+12x+2$

Convert in vertex form

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$y-2=x^{2}+12x$

Complete the square . Remember to balance the equation by adding the same constants to each side.

$y-2+36=x^{2}+12x+36$

$y+34=x^{2}+12x+36$

Rewrite as perfect squares

$y+34=(x+6)^{2}$

$y=(x+6)^{2}-34$

The vertex is the point (-6,-34)

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3 years ago

The following items are in the shape of a square. How many squares are

kramer

A because I have done this before

7 0

3 years ago

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mr_godi [17]

Answer:

Step-by-step explanation:

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2 years ago

What is the value of 'n' in the equation<br> -1/2(2n+4)+6=-9+4(2n+1)

sp2606 [1]

Answer:

I love algebra anyways

The ans is in the picture with the steps how i got it

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Step-by-step explanation:

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3 years ago

Put these in order starting with the smallest.<br>9 3/2 <br>27 1/3 <br>125 2/3

Pepsi [2]

Answer:

second, third,first

Step-by-step explanation:

first

3/2=1.5

9^1.5=27

second

1/3=0.333

27^0.333=3

third

2/3=0.667

125^0.667=25

3 0

3 years ago