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vagabundo [1.1K]
3 years ago
10

HI umm CAN YOU PLEASE ANSWER ASAP!!!!

Mathematics
1 answer:
Marianna [84]3 years ago
8 0

Answer:

2

Step-by-step explanation:

-6 divided by a positive number would make it a positive number welcome

You might be interested in
What is the probability of rolling a four then a three
spayn [35]

Answer:

\frac{1}{36}

Step-by-step explanation:

Total possibilities when we a roll a die at a time are 6

given we should have four for first time and then three

let us assume we rolled the dice we may get 1,2,3,4,5,6(any of these) the probability to get 4 is

PROBABILITY=\frac{\textrm{FAVOURABLE CHANCES}}{\textrm{TOTAL CHANCES}}

Favourable chances=1

Total chances=6

Probability=\frac{1}{6}

the prabability to get 4 in first roll is \frac{1}{6}.

let us assume we rolled the dice for second time again we may get 1,2,3,4,5,6(any of these) the probability to get 3 is

Favourable chances=1

total chances=6

probability=\frac{1}{6}

the probability to get 3 in second roll irrespective of first one is \frac{1}{6}

the probability to get 4 in first time and then 3 is

The probability to occur both events at a time is multiplication of individual probabilities

So,

probablility to get 4 in first roll=\frac{1}{6}

probability to get 3 in second roll=\frac{1}{6}

probability to occur both at a same time is =\frac{1}{6} \times\frac{1}{6}=\frac{1}{36}

6 0
3 years ago
A student concluded that the solution to the equation √2x+1+3=0 is x=4.
Anna71 [15]

Answer:

I do not agree, because x=4 is an extraneous

Step-by-step explanation:

First, to solve the equation, you subtract 3 from both sides,  then square both sides, subtract one from both sides, and finally divide by 2 on both sides. This indeed gets us x=4, but we also need to check if it's an extraneous solution. To do that we simply plug in x=4 into the original equation. sqrt( 2(4) + 1 ) + 3 = 0. When we do this, we end up with ±3 + 3 = 0. I do not agree, because we don't know if the sqrt(9) is -3 or 3.

5 0
4 years ago
Read 2 more answers
Suppose on a certain test, fifty students earn a perfect score and fifty students earn a zero. determine the mean grade and stan
kodGreya [7K]

Answer:

Mean=50.

standard deviation=50.

Step-by-step explanation:

Let the perfect score be 100.

The mean(average) of a data is given by: Mean=\frac{sum of data points}{number of data points}

Here the number of data points are 100. out of which 50 attains a value 100,and 50 attains value 0.

so, sum of data points=50×100+50×0=5000.

Mean=\frac{5000}{100}

Mean=50.

"Now the standard deviation of data points are calculated by firstly subtracting mean from every entry and then square the number and take it as new entry and calculate the mean of the new data entry and lastly taking the square root of this new mean".

Here if 50 is subtracted from each entry the new entry will have 50 entries as '50' and 50 entries as '-50'.

next on squaring we will have all the 100 entries as '2500'.

now the mean of these entries is: \frac{2500\times100}{100}

                                                         =2500

taking it's squareroot we have \sqrt{2500}=50

Hence, standard deviation=50.




5 0
4 years ago
Read 2 more answers
Please please please help
MrMuchimi
There are 1000000 megabytes in a terabyte :)

7 0
3 years ago
A lawn company advertises that they can spread 7,500 square feet of grass seed in 2 1/2 hours . Find the number of square feet o
Elan Coil [88]
If your divide 7,500 by 2 1/2 hours, you get 3,000, the number of grass seeds laid per hour
4 0
4 years ago
Read 2 more answers
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