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denpristay [2]
3 years ago
9

What is the domain of f(x) = 3x - 27

Mathematics
1 answer:
Olin [163]3 years ago
6 0

9514 1404 393

Answer:

  {x | x is a real number}

Step-by-step explanation:

The domain of any polynomial function is "all real numbers."

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Find the value of r so the line passes through each pair of points has the give slopes
Art [367]

Answer:

r=64

Step-by-step explanation:

First, let's start with what we have. If we use y=mx+b here's what we can put in:

y=-4x+b

Then we can use one of the given points to find the y-intercept. Since the only complete one is (12,10), we'll use that.

10=-4(12)+b\\10=-48+b\\58=b

So now we have y=-4x+58.

Now we can use our other point with the missing y-value and solve for y.

r=-4(-2)+58\\r=64

So the missing value is 64.

Hope this helps!

7 0
2 years ago
Write 9 decimals with three decimal places that when rounded to the nearest hundredth round to 4.56
Alexeev081 [22]
4.555
4.556
4.557
4.558
4.559
4.561
4.562
4.563
4.564
6 0
3 years ago
Read 2 more answers
HELP THIS IS DUE TODAY. A B C or D. The table shows the relationship of how many pounds of pecans are needed to make a certain n
vlabodo [156]
The 4th, did this and got a 100%
7 0
2 years ago
60°<br> (4x – 20)<br> Choose 1 answer:
Gemiola [76]

Answer:

x=20

Step-by-step explanation:

x=20 because 4×20=80

and 80-20= 60

7 0
3 years ago
Read 2 more answers
(with solution)
Lunna [17]

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + b ( m is the slope and c the y- intercept )

(1)

Here m = 6 and b = - 2, then

y = 6x - 2

(2)

The equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

Here m = - 2 and b = 5, then

y = - 2x + 5 ← equation in slope- intercept form

Add 2x to both sides

2x + y = 5 ← equation in standard form

(3)

Calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (6, - 13) and (x₂, y₂ ) = (- 4, - 3)

m = \frac{-3+13}{-4-6} = \frac{10}{-10} = - 1 , then

y = - x + b ← is the partial equation

To find b substitute either of the 2 points into the partial equation

Using (- 4, - 3 ) , then

- 3 = 4 + b ⇒ b = - 3 - 4 = - 7

y = - x - 7 ← equation in slope- intercept form

Add x to both sides

x + y = - 7 ← equation in standard form

8 0
3 years ago
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