3 years ago

Solve for the variable: -7y < 21

Mathematics

1 answer:

puteri [66]3 years ago

3 0

The anwer is letter C

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The x intercepts must be 1 and -4, so C.

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How do you solve 2x^2+4x=3+3x^2?

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Answer:

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Step-by-step explanation:

You add the like terms: 3x^2 and 2x^2, you get 5x^2. You can't do anything else because there are no more terms that are alike.

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4 years ago

Complete the point slope equation of the line through(-1,-10)and(5,2).<br>y-6=

Lynna [10]

Answer:

Step-by-step explanation:

The point-slope of an equation of a line:

$y-y_1=m(x-x_1)$

m - slope

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the poinys (-1, -10) and (5, 2). Substitute:

$m=\dfrac{2-(-10)}{5-(-1)}=\dfrac{12}{6}=2$

Put the value of the slope and the coordinateso f the point (5, 2), to the equation of a line:

$y-2=2(x-5)$

In the question we have y - 6 = ...

Therefore

$y-2=2(x-5)$ <em>subtract 4 from both sides</em>

$y-6=2(x-5)-4$ <em>use the distributive property</em>

$y-6=2x-10-4$

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$y-6=2(x-7)$

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4 years ago