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3 years ago

8

Please help me! x-7>10 x>__?

1 answer:

tester [92]3 years ago

3 0

Answer:

$x>17$

Step-by-step explanation:

We can treat an inequality just the same as an equality in terms of manipulation!(This doesn't hold for multiplying or dividing by negative numbers, but it holds for all addition).

So, we can add $7$ to both sides of the inequality to get $x-7+7>10+7$ .

We can simplify $-7+7$ into $0$ , and $10+7$ into $17$ .

So, the answer is $\boxed{x>17}$ and we're done!

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Answer:

Step-by-step explanation:

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4 years ago

Read 2 more answers

Pls help me! and no files and pls actually help me

crimeas [40]

Answer:

To find m ( slope) we'll use the Slope Formula:

$\boxed{\sf{Slope\:(m)}=\cfrac{y_2-y_1}{x_2-x_1}}$

<u>Subtract the numbers:-</u>

$\sf 7. \:m=\cfrac{4-2}{6-5} =\boxed{2}$

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$\sf 8.\: m=\cfrac{-1-3}{2-6} =\boxed{1}$

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$\sf 9.\: m=\cfrac{-4-(-2)}{3-1} =\boxed{-1}$

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$\sf 10.\: m=\cfrac{0-3}{0-(-3)} =\boxed{-1}$

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$\sf 11.\:m=\cfrac{4-2}{3-1} =\boxed{1}$

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$\sf 12.\: m=\cfrac{1-7}{2-5} =\boxed{2}$

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$\sf 13.\:m=\cfrac{11-9}{1-(-4)} =\boxed{\frac{2}{5}}$

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$\sf 14.\:m=\cfrac{2-3}{3-5} =\boxed{\frac{1}{2}}$

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$\sf 15.\: m=\cfrac{11-5}{2-9} =\boxed{-\frac{6}{7}}$

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$\sf 16.\: m=\cfrac{-7-\left(-6\right)}{8-13}=\boxed{\frac{1}{5}}$

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$\sf 17.\: m=\cfrac{4-4}{6-1} =\boxed{0}$

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$\sf 18. \: m=\cfrac{2-(-7)}{5-5}=$

↑ Undefined

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3 years ago

Solve the quadratic equation x^2-2x-8=0

Dennis_Churaev [7]

Using cross multiplication

$x^{2} -2x-8 =0$
(x-4)(x+2)=0
x-4=0
x+2=0

Thus x=4,-2

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3 years ago

What is the y-intercept of the line perpendicular to the line y = 3/4x + 3 that includes the point (-3, -3)

kipiarov [429]

A perpendicular line has an opposite reciprocal slope. This means that the new line will have a slope of -4/3x. Plug in x and y into the equation y=Mx +b where m is the slope (-4/3):
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The final equation is y= -4/3x + 21/4
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2 years ago