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3 years ago

What is 32/36 equivalent to ??

Mathematics

1 answer:

Fiesta28 [93]3 years ago

6 0

32/36 can be simplified twice into 16/18, and then into 8/9.

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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

3 years ago

2x + 3x + 4 equals .

RUDIKE [14]

Add like terms
only add x's together
2x+3x=5x

we can't add x's and numbres so
answer is 5x+4

7 0

3 years ago

I'm struggling right now because I learned this but I completely forgot how to do it. I need to find the distance between two po

DochEvi [55]

Answer:

12 units

Step-by-step explanation:

3 0

3 years ago

What is the difference between exponent form and expanded form (repeated multiplication)?

Inga [223]

Expanded FormExpanded form refers to a base and an exponent written as repeated multiplication. ExponentExponents are used to describe the number of times that a term is multiplied by itself. ExpressionAn expression is a mathematical phrase containing variables, operations and/or numbers.

5 0

3 years ago

What is 35% of 500?<br> Help please

Hatshy [7]

Answer:

175

Step-by-step explanation:

500 times 35/100

simplify

8 0

3 years ago

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