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3 years ago

Hi I'm a girl and if anyone need help come to me cause I'm here and I know every thing and I'm nice:)

Mathematics

2 answers:

Anika [276]3 years ago

4 0

I keep running into you it's weird.

<h2>George Foreman</h2>

alexira [117]3 years ago

3 0

Uhmm ok thank uuuuuu

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There are 125 people in a sport centre.

Maurinko [17]

Answer: 97/125

Step-by-step explanation:

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3 years ago

Please answer all of these

Nina [5.8K]

Answer:

4 is D, 5 is D, 6 is A, 7 is C

Step-by-step explanation:

just do da math

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3 years ago

Please take a look at the picture. Please write your answer with an explanation.

g100num [7]

Answer:

Step-by-step explanation:

<h3>Given question:</h3>

To simplify - 

$14 + 16 \div {2}^{3} - (12 + {3}^{2} ) \div 7 + 2 \times ( - 5)$

<h3>Solution:</h3>

According to PEMDAS rule,

[First parenthesis]

$= 14 + 16 \div {2}^{3} - (12 + 9 ) \div 7 + 2 \times ( - 5)$

$= 14 + 16 \div {2}^{3} - 21 \div 7 + 2 \times ( - 5)$

[Then exponents]

$= 14 + 16 \div 8 - 21 \div 7 + 2 \times ( - 5)$

[Then multiplication]

= 14 + 16 ÷ 8 - 21 ÷ 7 - 10

[Then division]

= 14 + 2 - 3 - 10

[Then addition]

= 16 - 13

[Then subtraction]

= 3 (Ans)

8 0

2 years ago

Triangle ABC is a right triangle and cos(22.6)

Anon25 [30]

Wat r u asking about this problem

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3 years ago

The variance of a stock's returns can be calculated as the:

Tamiku [17]

Answer:

The correct option is b.

Step-by-step explanation:

The formula for standard deviation is

$\sigma^2=\frac{\sum {(x-\overline{x})^2}}{n}$

where, $\overline{x}$ is mean of the data and n is number of observation.

The variance of a stock's returns can be calculated by the above formula.

Variance of stock's returns is the average value of squared deviations from the mean.

Therefore the correct option is b.

4 0

3 years ago