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2 years ago

Which color is the line that represents an equivalent ratio? How can you tell by looking at the lines?

Mathematics

2 answers:

Schach [20]2 years ago

5 0

I cant answer if i cant see the graph sorry

alukav5142 [94]2 years ago

4 0

Answer:

its C

Step-by-step explanation:

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7. Solve the proportion

RideAnS [48]

Answer:

Step-by-step explanation:

56 divided by 7 = 8

14 divided by 7 = 2

hinting at 8/2

4 0

3 years ago

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The cost to hire a plumber for x hours is shown on the graph. For this graph, what does the y-intercept of the line of best fit

Alenkasestr [34]

The y-intercept represents the flat charge to hire the plumber

Explanation: The y-intercept is 0 hour, which can represent flat charge

5 0

2 years ago

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Which step is it?? Please help me.

eduard

Answer:

Use PEMDAS so division would be the first step

Step-by-step explanation:

1)Parentheses

2)Exponents

3)Multiplication

4)Division

5)Addition

6)Subtraction

6 0

3 years ago

What is the x-intercept for the following linear equation:

Alexandra [31]

The "x-intercept" occurs when y=0, because it is at this point that the equation touches the x axis. So if you plug in y=0 into the equation you can solve for the x coordinate.

4x-2(0)-8=0

4x-8=0

4x=8

x=2

So the x-intercept is the point (2,0)

3 0

2 years ago

Given that the quadratic equation has equal roots (k^2-1)x^2-2kx-3k-1=0

Alik [6]

Answer:

(See explanation for further details)

Step-by-step explanation:

The real expression is:

$(k^{2}-1)\cdot x{{2} - 2\cdot k \cdot x - 3\cdot k + 1 = 0$

The general equation for the second-order polynomial is:

$x = \frac{2\cdot k \pm \sqrt{4\cdot k^{2}-4\cdot (k^{2}-1)\cdot (-3\cdot k + 1)}}{k^{2}-1}$

This condition must be observed for the case of a quadratic equation with equal roots:

$4\cdot k^{2} - 4\cdot (k^{2}-1)\cdot (-3\cdot k + 1) = 0$

$k^{2} + (k^{2}-1)\cdot (3\cdot k + 1) = 0$

$k^{2} + 3\cdot k^{3} - 3\cdot k - k^{2}-1 = 0$

$3\cdot k^{3} - 3\cdot k - 1 = 0$

7 0

3 years ago