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krek1111 [17]
3 years ago
11

Read the problem in the box below. Make a list to help you find the correct

Mathematics
1 answer:
Taya2010 [7]3 years ago
8 0

Answer:

C. WP WB, WC, PB, PC, BC

Step-by-step explanation:

<em>List the possible combinations. (With no duplicates)</em>

WP, WB, WC

PB, PC

BC

<em>Now check your options for the answer with the combinations you had.</em>

<em>That is your answer.</em>

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the elementary school lunch menu repeats every 20 days. the middle school lunch menu repeats every 15 days. both schools are ser
lilavasa [31]
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3 years ago
What is the result of substituting for y in the bottom equation?<br> y=x-7<br> y=2+2x-4
Makovka662 [10]

Answer:

Plug x-7 in for y, in the bottom equation.

x - 7 = 2 + 2x - 4

x - 7 = 2x - 2

x = 2x + 5

-x = 5

x = -5

6 0
3 years ago
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Write an equation of the line passing through point P(−8, 0) that is perpendicular to the line 3x−5y = 6.
denpristay [2]

Answer:

y = -5/3 * x - 40/3

Step-by-step explanation:

A perpendicular line has an opposite and a reciprocal of the slope.

Your equation should be:

-5y = -3x +6

Divide all parts by -5.

y = 3/5x - 6/5

Since the perpendicular line has an opposite and a reciprocal of the slope, the slope will be -5/3.

Now you must make an equation in point-slope form. This is an example of that form. You will need at least one point to make this equation work. In this case we have (-8,0).

In put the y and x coordinates like this:

y - 0 = -5/3(x - (-8)

Start solving the equation.

y - 0 = -5/3(x + 8)

y - 0 = -5/3 * x - 40/3

y = -5/3 * x - 40/3

This is your equation.

y = -5/3 * x - 40/3

(You can make it -5/3x in your answer but it looks weird online. You may think that it is -5 divided by 3 times x, but it actually is 5/3 times x. That's why I wrote it as y = -5/3 * x - 40/3)

8 0
3 years ago
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A quality control engineer Is interested in the mean length of sheet insulation being cut automatically by machine. It is known
nydimaria [60]

Answer:

D.2.58

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1 - 0.99}{2} = 0.005

Now, we have to find z in the Ztable as such z has a pvalue of 1 - \alpha.

That is z with a pvalue of 1 - 0.005 = 0.995, so Z = 2.58.

The answer is given by option D.

7 0
3 years ago
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