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3 years ago

Solve for x. Your answer must be simplified. -7x > 10

Mathematics

1 answer:

andre [41]3 years ago

5 0

The answer to this is x < -10/7

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8+x/2=-12 i need help badly

Musya8 [376]

First subtract 8 from both sides
leaving you with x/2 = -20
Then multiply both sides by two to get rid of the denominator
which leaves you with x = -40

4 0

3 years ago

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which of the following pairs of lines are perpendicular? select all that apply A y=2/3x+4 and y=2/3x-8 B y=2/3x-8 and y=-3/2x-8

jasenka [17]

Its B, C, E, F because for B the neg reciprocal of 1 is -1

6 0

3 years ago

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The table shows the values of a function f(x).

Afina-wow [57]

Answer:

The answer is -80

Step-by-step explanation:

The average rate of change is also the slope from the endpoints. The two points are (0,500) to (5, 100). To find the average rate of change between those points, use the formula: change of y over the change of x.

$\frac{y2-y1}{x2-x1}$

$\frac{100-500}{5-0} = \frac{-400}{5} =-80$

5 0

4 years ago

Which polynomial can be factored using the binomial theorem?

Galina-37 [17]

Answer:

Step-by-step explanation:

I think the one you want is the last one, but I've never called it that.

21x^2 + 147x + x^3 + 343

x^3 + 343 is a cubic binomial. It factors into (x + 7) (x^2 - 7x + 49)

21x(x + 7) + (x + 7)(x^2 - 7x + 49)

(x + 7) [ 21x - 7x + x^2 + 49)

(x + 7) [x^2 + 14x + 49]

(x + 7) ( x+7)^2

(x + 7)^3

It's the only answer that does factor. There must be a simpler way of doing it, but this will give you the right answer.

4 0

3 years ago

What are 2 points on the graph for 6x-5y=25

zepelin [54]

To find any two random point on the graph of 6x-5y=25, we can just plug in any two values for x and solve for y, and find the 2 points in the form of (x,y).

So lets plug in x=0.

$\sf 6x-5y=25$
$\sf 6(0)-5y=25$
$\sf -5y=25$
$\sf y=-5$
So one point is (0,-5)

And to find another point, we can plug in x=1

$\sf 6x-5y=25$
$\sf 6(1)-5y=25$
$\sf 6-5y=25$
$\sf -5y=25-6$
$\sf -5y=19$
$\sf y=19/-5$
$\sf y=-3.8$
So another point is (1,-3.8)

8 0

3 years ago