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kondaur [170]
3 years ago
6

Mr. Jones has three tables in his classroom. Each table has four

Mathematics
2 answers:
natima [27]3 years ago
5 0

Answer:

24

Step-by-step explanation:

you would multiply 3 tables by 4 students, that would be twelve. then 12 times 2, which is 24. Or you could find the pencils by multiplying 2 with 8 and then multiplying by 3. :)

romanna [79]3 years ago
3 0

Answer:

24

Step-by-step explanation:

4 students per table: 4 * 3 = 12 students

2 pencils per student: 2 * 12 = 24 pencils

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You and 4 friends meet to have dinner at your favourite restaurant. Everyone decides to order the nightly special. Write an expr
jok3333 [9.3K]

Answer:

5x

Step-by-step explanation:

1 plus 4 is 5 and everyone is ordering the same thing, which is known as any variable, so in this case, x. So, you get 5x

6 0
3 years ago
A national study report indicated that​ 20.9% of Americans were identified as having medical bill financial issues. What if a ne
Alenkasestr [34]

Answer:

The​ p-value for this​ test is 0.22065.

Step-by-step explanation:

We are given that a national study report indicated that​ 20.9% of Americans were identified as having medical bill financial issues.

A news organization randomly sampled 400 Americans from 10 cities and found that 90 reported having such difficulty.

<u><em>Let p = proportion of Americans who were identified as having medical bill financial issues in 10 cities.</em></u>

SO, Null Hypothesis, H_0 : p \leq 20.9%   {means that % of Americans who were identified as having medical bill financial issues in these 10 cities is less than or equal to 20.9%}

Alternate Hypothesis, H_A : p > 20.9%   {means that % of Americans who were identified as having medical bill financial issues in these 10 cities is more than 20.9% and is more severe}

The test statistics that will be used here is <u>One-sample z proportion</u> <u>statistics</u>;

                                  T.S.  = \frac{\hat p-p}{{\sqrt{\frac{\hat p(1-\hat p)}{n} } } } }  ~ N(0,1)

where, \hat p = sample proportion of 400 Americans from 10 cities who were found having such difficulty =  \frac{90}{400} = 0.225 or 22.5%

            n = sample of Americans = 400

So, <u><em>test statistics</em></u>  =  \frac{0.225-0.209}{{\sqrt{\frac{0.225(1-0.225)}{400} } } } }

                               =  0.77

<u></u>

<u>Now, P-value of the test statistics is given by the following formula;</u>

         P-value = P(Z > 0.77) = 1 - P(Z \leq 0.77)

                                            = 1 - 0.77935 = 0.22065

5 0
3 years ago
− 3 x − 4 + 8 x 3 + 7 x 2 − x 4 -3x-4+8x3+7x2-x4
Elan Coil [88]
The answer is: 62x-8
7 0
3 years ago
If you knew that f(-4)=8, then what (x,y) coordinate point must lie on the graph of y=f(x?)​
nika2105 [10]

Answer:

(-4,8)

Step-by-step explanation:

so f(-4)=8 this is easy

the -4 is the x

beause f(x)=y

so the 8 is the y

when y is f(-4)=8 then the cordinate points are (-4,8)

7 0
3 years ago
Please simplify this equation:<br><br>16x²+16y²+96x-40y=315
gavmur [86]
Hopefully this helps: 16(x^2 + 6x + y^2) = 5(8y + 63)

I'm not sure where to take it from there, but hopefully someone can build off of that. :)
8 0
3 years ago
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