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Anika [276]
3 years ago
10

Evaluate c-2 when c =7

Mathematics
2 answers:
LenaWriter [7]3 years ago
5 0
If C = 7, You would do 7-2 = 5
meriva3 years ago
3 0

Answer:

The value of given expression c-2 is 5 when c=7.

Step-by-step explanation:

The given expression

c-2

We have to find the value of given expression c-2 when c=7.

Substitute c=7 in the given expression.

c-2=7-2

c-2=5

Therefore the value of given expression c-2 is 5 when c=7.

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a contractor is looking at plans for building a storage shed. the side of the building on the plans is .75 inches long. if the s
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Answer:

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3 years ago
Write an equation in slope-intercept form of the line that passes through (-1, 4) and (0, 2).
arsen [322]

Answer:

y=-2x+2

Step-by-step explanation:

Hi there!

Slope-intercept form: y=mx+b where m is the slope and b is the y-intercept (the value of y when the line crosses the y-axis)

<u>1) Determine the slope</u>

m=\frac{y_2-y_1}{x_2-x_1} where the two given points are (x_1,y_1) and (x_2,y_2)

Plug in the given points (-1, 4) and (0, 2)

=\frac{2-4}{0-(-1)}\\=\frac{-2}{0+1}\\=\frac{-2}{1}\\= -2

Therefore, the slope of the line is -2. Plug this into y=mx+b:

y=-2x+b

<u>2) Determine the y-intercept</u>

y=-2x+b

Recall that the y-intercept is the value of y when the line crosses the y-axis, meaning that the y-intercept occurs when x is equal to 0.

One of the given points is (0,2). Notice how y=2 when x=0. Therefore, the y-intercept of the line is 2.

Plug this back into the equation:

y=-2x+2

I hope this helps!

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Evaluate -x^2-2x+5 when x=-10
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The picture is my work just ignore the fraction.

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