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3 years ago

The solution to which inequality is shown?

1 answer:

3 0

←←←←←←←←Ö
 | | | | | | | | | | | | | | | | | | | | | 
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10

This is how I understand the word problem.

Since the circle above -4 is an open circle, it means that y is not equal to -4.

Since the arrow is going to the left of -4, the numbers are all less than -4.

y < -4

Among the choices, D. y + 3 < -1 is the correct answer.

y + 3 < -1
 -3 -3
y < -4

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X^2+4x-7 what is the ordered pair

lisabon 2012 [21]

It would be y=4x-7. I hope this helped :)

6 0

3 years ago

Compare the two ratios is 6 : 15 less than 30 : 80 or greater than?

romanna [79]

Work:
6/15 = x/1
To get from 15 to 1, you have to divide by 15. So, to make an equal field, divide 6 by 15.

6 : 15 is the same as 2 : 5 or 0.4.

30/80 = x/1
To get from 80 to 1, you have to divide by 80. So, to make an equal field, divide 30 by 80.

30 : 80 is the same as 3 : 8 or .875.

Comparing the two, 30 : 80 is greater than 6 : 15.

Hope this helps. Have a good day.

6 0

3 years ago

Read 2 more answers

Whats the slope intercept form for the points [5,2] and [0,-1]

Advocard [28]

Answer:

$\displaystyle y=\frac{3}{5}x-1$

Step-by-step explanation:

The Equation of a Line

The equation of the line in slope-intercept form is:

$y=mx+b$

Where m is the slope and b the y-intercept.

The equation of a line passing through points (x1,y1) and (x2,y2) can be found as follows:

$\displaystyle y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

We are given the points (5,2) and (0,-1), thus:

$\displaystyle y-2=\frac{-1-2}{0-5}(x-5)$

Operating:

$\displaystyle y-2=\frac{-3}{-5}(x-5)$

$\displaystyle y-2=\frac{3}{5}(x-5)$

To find the slope-intercept form, we continue to simplify the expression:

Removing the parentheses:

$\displaystyle y-2=\frac{3}{5}x-\frac{3}{5}\cdot 5$

$\displaystyle y-2=\frac{3}{5}x-3$

Adding 2:

$\displaystyle y=\frac{3}{5}x-3+2$

$\mathbf{\displaystyle y=\frac{3}{5}x-1}$

4 0

3 years ago

Evaluate the replacement set for the following equation 2n - 3 < 9. replacement set : n = {2, 5, 0}

ad-work [718]

n = {2, 5, 0} holds true for 2n - 3 < 9

Solution:

Replacement set is the set of values that may be substituted for the variable.

Plug in each value from the replacement set and evaluate both sides of the inequality

If the inequality is true for a certain value, that value belongs in the solution set.

Given equation is:

2n - 3 < 9

Substitute n = 2

2(2) - 3 < 9

4 - 3 < 9

1 < 9

1 is less than 9 is true

Thus n = 2 is a solution to equation

Substitute n = 5

2(5) - 3 < 9

10 - 3 < 9

7 < 9

7 is less than 9 is true

Thus n = 5 is a solution to equation

Substitute n = 0

2(0) - 3 < 9

0 - 3 < 9

-3 < 9

-3 is less than 9 is true

Thus n = -3 is a solution to equation

7 0

4 years ago

Scientists use ____________________, or powers of ten, to write very large or very small numbers in shorter form.

lbvjy [14]

Scientific notation is writing numbers as a product of a power of 10 to shorten them.

8 0

3 years ago