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3 years ago

5(x+3)-5 simplify this.

Mathematics

1 answer:

nignag [31]3 years ago

8 0

Answer:

5x+10

Step-by-step explanation:

Distribute:

=(5)(x)+(5)(3)+−5

=5x+15+−5

Combine Like Terms:

=5x+15+−5

=(5x)+(15+−5)

=5x+10

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Lesechka [4]

Answer:

(B) There are 12 glasses for every 1 table

Step-by-step explanation:

Since the graph is a perfectly straight line, we can assume that there is a proportional relationship. Looking at the axes confirms this. For the 1st table, there are 12 glasses, for the 2nd, there are 24, and so on.

So, we can see that the proportion between tables and glasses is 12:1. For every 1 table, 12 glasses must be placed on it.

So, if they gave this to you as a table or a formula, you'd simply need to multiply 12 by the number of tables to see how many glasses are required.

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2 years ago

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The passenger car equivalent for a freeway with a 4% downgrade that is 4 miles long and contains 5% single unit trucks and 5% tr

Kamila [148]

I'm guessing the answer would be 15%

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3 years ago

F(x)=5x-3 what does f(5)=

MA_775_DIABLO [31]

f(5) means that x=5

Now, we solve 5x-3 because we know what x is.

5(5)-3

25-3

F(5)=22

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3 years ago

Kevin cuts a foam block along the red line. When he looks at the newly exposed face, what is the shape of the cross-section

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Answer:

Step-by-step explanation:

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3 years ago

Which system of inequalities is represented by the graph?

Dahasolnce [82]

Answer:

$y\leq 2x+4$

$y\geq -x-6$

Step-by-step explanation:

step 1

Find the equation of the solid line with positive slope

we have the points

(0,4) and (-2,0)

Find the slope

$m=(0-4)/(-2-0)=2$

The equation of the line in slope intercept form is equal to

$y=mx+b$

we have

$m=2\\b=4$

substitute

$y=2x+4$

step 2

Find the equation of the inequality with positive slope

we know that

The solution of the inequality, is the shaded area below the solid line

The equation of the inequality is

$y\leq 2x+4$ ----> inequality A

step 3

Find the equation of the line with negative slope

we have the points

(-6,0) and (-4,-2)

Find the slope

$m=(-2-0)/(-4+6)=-1$

The equation of the line in slope intercept form is equal to

$y=mx+b$

we have

$m=2\\point\ (-6,0)$

substitute

$0=-(-6)+b$

solve for b

$0=6+b$

$b=-6$

The linear equation is

$y=-x-6$

step 4

Find the equation of the inequality with negative slope

we know that

The solution of the inequality, is the shaded area above the solid line

The equation of the inequality is

$y\geq -x-6$ ----> inequality B

therefore

The system of inequalities is

$y\leq 2x+4$ ----> inequality A

$y\geq -x-6$ ----> inequality B

7 0

3 years ago