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Tatiana [17]
3 years ago
10

I don’t really understand this

Mathematics
2 answers:
anastassius [24]3 years ago
5 0

Answer:

Plug in -3 into all the x's are

Step-by-step explanation:

f(x)= -2(-3)²-3(-3)+6

PtichkaEL [24]3 years ago
3 0

Answer:

you put the -3 where the x's are

Step-by-step explanation:

f(x)= -2(-3)^2 - 3(-3) + 6

i think i hope thats right

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How much has the value of y changed between the points (-8, 4) and (8, -4)?
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The answer is I think B

Step-by-step explanation:

I just took the test

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Which of these shows the result of using the first equation to substitute for y in the second equation, then combining like term
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Suppose for some value of x the solution to the equation 2.5(y−x)=0 is y = 6. What must be true about x?
Varvara68 [4.7K]

Step-by-step explanation:

In this case, you input the value of y (y = 6) into the equation ( 2.5(y-x)= 0)

2.5(6-x) = 0

Open the bracket,

(2.5×6)-2.5x= 0

Collect like terms.

2.5x= 2.5×6

Divide both sides by the coefficient of x (2.5)

x = 6

So,

x= 6 is true.

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Substituting 6 for x in the equation,

2.5(6-6)= 0

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Which is also true.

7 0
2 years ago
Solve for x<br>2x²-3x-209=0​
kifflom [539]

Answer:

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Step-by-step explanation:

3 0
3 years ago
What is the rate of change of the linear function represented by the table? StartFraction one Over three EndFraction StartFracti
Lynna [10]

The rate of change of the linear function represented by the table is 3

<h3>Rate of change of a function</h3>

The rate of change of a function is also known as the slope of a function. The equation for calculating the slope is expressed as:

Slope = y2-y1/x2-x1

using the coordinates from the table (-2, -13) and (-1, -10)

Substitute

Slope = -10-(-13)/-1-(-2)

Slope = -10+13/-1+2

Slope =3

Hence the rate of change of the linear function represented by the table is 3

Learn more on rate of change here: brainly.com/question/25184007

#SPJ1

5 0
2 years ago
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