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2 years ago

Is square root of 2 a natural, whole,integer, Rational, or irrational.

Mathematics

1 answer:

34kurt2 years ago

4 0

The answer is irrational

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8 1/2 minus 7 1/4 in fraction form?

barxatty [35]

Answer:

1 1/4

1.25

Step-by-step explanation:

8 0

2 years ago

Calculate the value of the sample variance. Round your answer to one decimal place. 9_5,9_5,2,9_5

Ugo [173]

Answer:

$s^2 = 0.01$

Step-by-step explanation:

Given

Values: 9/5, 9/5, 2, 9/5

Required

Calculate the sample variance

Sample variance is calculated using:

$s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}$

First, we calculate the mean

$\overline x = \frac{\sum x}{n}$

$\overline x = \frac{9/5 + 9/5 + 2 + 9/5}{4}$

$\overline x = \frac{7.4}{4}$

$\overline x = 1.85$

$s^2 = \frac{\sum (x_i - \overline x)^2}{n - 1}$ becomes

$s^2 = \frac{(9/5 - 1.85)^2+(9/5 - 1.85)^2+(2 - 1.85)^2+(9/5 - 1.85)^2}{4 - 1}$

$s^2 = \frac{(-0.05)^2+(-0.05)^2+(0.15)^2+(-0.05)^2}{4 - 1}$

$s^2 = \frac{0.0025+0.0025+0.0225+0.0025}{3}$

$s^2 = \frac{0.03}{3}$

$s^2 = 0.01$

<em>Hence, the variance is 0.01</em>

5 0

2 years ago

Today only, a table is being sold for $279. This is 62% of its regular price. What was the price yesterday?

White raven [17]

Answer:

Step-by-step explanation:

5 0

1 year ago

What is 6/2(1+2)=?

Rufina [12.5K]

Answer:

Answer is 9

Step-by-step explanation:

Remember PEMDAS???

"parenthesis, exponents, multiplication, division, addition, subtraction"

you would first solve the addition inside of the parentheses (1 + 2 = 3), and from there finish the equation as it's written from left to right.

8 0

2 years ago

Read 2 more answers

The cost of a student ticket to the school play is $7. Write an equation that correctly relates the total cost, c, for a particu

svp [43]

The answer is:

c = 7s

The Independent Variable is: s
The Dependent Variable is: c

8 0

2 years ago