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4 years ago

14

The students at Southern Junior High School are divided into four homerooms. Benjamin just moved into the school district and wi

ll be randomly assigned to one homeroom.

1 answer:

Klio2033 [76]4 years ago

3 0

Answer:

yes

Step-by-step explanation:

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The product of two consecutive odd integers is 195.

rodikova [14]

You need the odd integers to be separated by 2. One will not work.

If n is odd, n + 1 will be even. You cannot get an exception to that. Try it.

1 is odd but 1 + 1 is even.

n and n + 3 produces 1 odd and 1 even. If n is odd then since 3 is odd when the two are added together, you get an even. Again try it

n = 5

n + 3 = 8

C: is not the answer.

D can't work either. If n is odd then n + 2 will be odd but n + 1 is even.

The Answer is B.

n(n + 2) = 195

n^2 + 2n - 195 = 0

(n - 13)(n + 15)

n can be 13 and n + 2 can be 15

13 * 15 = 195

But here's something you may not know

n can be - 15 and then the other odd number would be - 13

3 0

3 years ago

2/3/ -1 1/3 I am confused

juin [17]

Answer: -3

Step-by-step explanation:

2/3-11/3

= 2-11/3

=-9/3

=-3

4 0

3 years ago

A survey by the Pew Research Center found that social networking is popular in many nations around the world. The file here cont

liberstina [14]

Answer:

Check the explanation

Step-by-step explanation:

Social Median GDP (PPP), Y X^2 Y^2 XY

usage (%), X

18085 66 327067225 4356 1193610

15833 56 250683889 3136 886648

6117 47 37417689 2209 287499

6559 42 43020481 1764 275478

9948 40 98962704 1600 397920

15264 41 232989696 1681 625824

17522 50 307020484 2500 876100

4661 34 21724921 1156 158474

9833 54 96687889 2916 530982

5186 22 26894596 484 114092

18579 69 345179241 4761 1281951

19105 67 365001025 4489 1280035

13580 59 184416400 3481 801220

12115 49 146773225 2401 593635

15614 44 243796996 1936 687016

5289 45 27973521 2025 238005

7508 29 56370064 841 217732

11521 43 132733441 1849 495403

2824 32 7974976 1024 90368

3542 27 12545764 729 95634

1855 36 3441025 1296 66780

2056 35 4227136 1225 71960

3142 7 9872164 49 21994

1473 13 2169729 169 19149

Total 227211 1007 2984944281 48077 11307509

Sample size: n=24

Now,

Syy= 5824.95833

833909342.6

ry 1774114.125 ry

The coefficient of correlation is :

0.805

The coefficient of correlation indicates a strong and positive correlation between the variables.

(b)

For hypotheses correct option is (a).

The test statistics is

= 6.36

Degree of freedom: df=n-2= 22

The p-value is: 0.000

The critical value of t is to/2 = 2.07

Since p-value is less than 0.05 so we reject the null hypothesis. There is significant evidence ....

6 0

3 years ago

How do you Multiply Radicals?????

Zolol [24]

Answer:

1. $4\sqrt{5}$

2. $10\sqrt{10}$

Step-by-step explanation:

When you multiply radicals, you do the following

$a\sqrt{b}\cdot c\sqrt{d}\\\\=ac\sqrt{bd}$

with that in mind

1.

$\sqrt{16}\cdot \sqrt{5}$

here we don't need to multiply 16 times 5, because 16 = 4^2 and take the square root of it, gives you 4

$=4\sqrt{5}$

2.

$\sqrt{20}\cdot 5\sqrt{2}\\\\\longrightarrow 20 = 2^2\cdot 5\\\\=2\sqrt{5}\cdot5\sqrt{2}\\\\=(2\cdot5)\sqrt{5\cdot2}\\\\=10\sqrt{10}$

6 0

3 years ago

ANSWER FOR 20POINTS PLEASE

krok68 [10]

Answer:

$| {7}^{2} - 8| = |49 - 8 = |41| = 41$

7 0

3 years ago

Read 2 more answers