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e-lub [12.9K]
3 years ago
11

30 PTS HELP ME ASAP! PLEASE! IM TIRED AND NEED HELP!

Mathematics
1 answer:
almond37 [142]3 years ago
4 0

Answer:

Step-by-step explanation:

Slope is an average.  In this particular context, the slope of 6.9 (or 7) means that an average of 7 people entered the store every hour.

If x is the number of hours the store is open and we are told to find the number of customers that have entered the store after 5 hours, we fill in the equation as follows:

y = 7(5) + 10 and

y = 35 + 10 so

y = 45.

If you use 6.9 instead of 7:

y = 6.9(5) + 10 and

y = 34.5 + 10 so

y = 45.5

Since you can't count a half of a person, using 7 instead of 6.9 makes more sense.

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Given f(x) = abx + c. How would increasing the value of a change the graph?
Helen [10]
Increasing the value of a would change the slope of the function specifically it would increase as well. Therefore, the line would be steeper than the original. The term ab represents the slope of the function and changing either one would result to the change of the steepness of the line.
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The chi-square test assesses whether the _____ observed in a cross-tabulation diverge from those one would expect under the null
pantera1 [17]

Answer: Frequencies .

Step-by-step explanation:

In statistics theory the chi-square test statistic is calculated by considering each cell and the expected frequency is subtracted from the observed frequency after that the difference is squared, and the total is divided by the expected frequency. This is highlight that the key focus of the chi-square test is the frequencies .

3 0
3 years ago
Grace earned $3,264 last month. If she makes $16 per hour,<br> how many hours did she work?
Sholpan [36]

Answer:

204 hours

Step-by-step explanation:

3264 divided by 16 = 204 hours

5 0
3 years ago
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The area of a rectangular patio is 5 5/8 square yards, and it's length is 1 1/2 yards. What is the patio's width in yards?
MAXImum [283]
Hello there! Thank you for asking your question here at Brainly. I will be assisting you today with answering this problem, and will be teaching you how to deal with it on your own in the future.

First, let's take a look at our question, and evaluate it.

"The area of a rectangular patio is 5 5/8 square yards, and it's length is 1 1/2 yards. What is the patio's width in yards?"

To clarify this problem, we are looking for the patio's width.

Let's first understand what the area of a rectangular shape is.
The formula for the area of a rectangle is "Length times Width", or "L • W".

So this is how the equation should look like:
A = L • W
We have our area, 5 5/8, and we have our length, 1 1/2.

To make things more simple, let's convert our fractions to decimals. Now, to convert our fractions to decimals, let's set our denominators (the numbers on the bottom of a fraction) equal to another fraction, with x as the numerator (the numbers on the top of a fraction) and 100 as the denominator.

So we have 1/2 and x/100. Divide 100 by 2 to find x (as 1/2 of anything is dividing by 2).
100 / 2 = 50, so 1 1/2 = 1.50 as a decimal.

Now, let's try 5/8.
1/8 = 0.125, so multiply 0.125 by 5.
0.125 • 5 = 0.625.
5 5/8 = 5.625 as a decimal.

So, now we have our equation:
A = L • W
Plug in our numbers.
5.625 = 1.50x

To isolate and solve for x, we need to divide both sides by 1.50, so let's do that.
5.625 / 1.50 = 3.75
1.50x / 1.50 = x

We are now left with:
x = 3.75

Your answer is:
The patio's width is 3.75 yards.

I hope this helps!
8 0
3 years ago
Use suitable Identities and find <br>●( X - 5 ) ( x-5 )<br>●( 3x +2 ) (3x -2 )<br>●( 1+x )(1+x) ​
Nonamiya [84]

Answer:

.

Step-by-step explanation:

<h2><u>IdEnTiTy UsED</u></h2>

{x}^{2}  -  {y}^{2}  = (x + y)(x - y)

1)

(x  -  5)(x - 5)

=(x-5)²

2)

(3x - 2)(3x + 2)

{(3 x)}^{2}  -  {(2)}^{2}

= 9 {x}^{2}  - 4

3)

(1+x)(1+x)

= (1+x)²

6 0
4 years ago
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