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3 years ago

How to tell if a table represents a linear relationship?

1 answer:

6 0

Either graph the points, or you can divide x by y for each set of points and if your answers are the same, then it is linear.

Hope it helps!

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Determine the area of the square ABCD with AB=3cm<br>

Svetach [21]

Side=3cm

$\\ \tt\longmapsto Area=(side)^2$

$\\ \tt\longmapsto Area=3^2$

$\\ \tt\longmapsto Area=9cm^2$

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2 years ago

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A score of 17 on a math test results in a mark of 68%. What score would give you a mark of 100%?

matrenka [14]

Answer:

17/25

Step-by-step explanation:

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3 years ago

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6x squared plus 12x plus 13 equals 2x squared plus 4

Andrews [41]

$12x^2+12x+3=2x^2+4\\\\12x^2-2x^2+12x+3-4=0\\\\10x^2+12x-1=0\\\\a=10;\ b=12;\ c=-1\\\\\Delta=12^2-4\cdot10\cdot(-1)=144+40=184\\\\x_1=\frac{-b-\sqrt\Delta}{2a};\ x_2=\frac{-b+\sqrt\Delta}{2a}\\\\\sqrt\Delta=\sqrt{184}=\sqrt{4\cdot46}=2\sqrt{46}\\\\x_1=\frac{-12-2\sqrt{46}}{2\cdot10}=\frac{-6-\sqrt{46}}{10};\ x_2=\frac{-12+2\sqrt{46}}{2\cdot10}=\frac{-6+\sqrt{46}}{10}$

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3 years ago

For what value of x would the expression below be undefined? 2x − 15 x + 9

Naddik [55]

Hey there!

I'm assuming your expression is actually $\frac{2x - 15}{x + 9}$ . If it's not, let me know and I'll be happy to help you out further.

If x were equal to –9, your expression would be undefined. If you solve it with this value plugged in for x, you will get the following:

$\frac{2x - 15}{x + 9}$

$\frac{2(-9) - 15}{(-9) + 9}$

$\frac{-18 - 15}{0}$

$\frac{-33}{0}$

$error$

You can't divide anything by zero. This expression would be undefined if x were –9 since it makes the denominator zero. Therefore, x ≠ –9.

Hope this helped you out! :-)

7 0

3 years ago

Some math probssssssss

Anettt [7]

Answer:

m = 8

Step-by-step explanation:

turn it into a square and then you can divide 48 by 6 and the answer is 8

4 0

2 years ago

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