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professor190 [17]

3 years ago

12

Can anyone help I'm stuck

1 answer:

gogolik [260]3 years ago

4 0

In the picture we can see one whole square and 1/4 of a whole square shaded this means that 1 1/4 or 5/4 would be appropriate answers but it says that you are trying to find a appropriate mixed number. A mixed number is a number that includes a whole number and a fraction. For example, 3 1/3 is a mixed number. This means that it can't be 5/4 because it doesn't include a whole number leaving 1 1/4. So, 1 1/4 or D would be correct.

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Write 295 in expanded form

ki77a [65]

200+90+5 is the answer

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3 years ago

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Sara collected $135 in donations for the hospital. This represents 5% of the total amount collected by her class. How much did t

Charra [1.4K]

Answer:

Step-by-step explanation:

A(5/100)=135

A=100(135)/5

A=$2700

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What is he rate of change of a line that passes through the points (7,-1) and (-1,5)

tino4ka555 [31]

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3 years ago

There is a theory that children wearing superhero costumes are more likely to harm themselves because of the unrealistic impress

____ [38]

Answer:

$Mean = 47$

$n = 6$

$s= 16.56$

$\sqrt n = 2.45$

$SEM = 11.55$

Step-by-step explanation:

Given: The above data

Solving (a): Mean of each group

Mean is calculated as:

$Mean = \frac{\sum x}{N}$

$Mean = \frac{55 + 31 + 58 + 20 + 47 + 37+68 + 32 + 85 + 69 +58 + 52+26 + 47 + 30 +35 + 53 + 43}{18}$

$Mean = \frac{846}{18}$

$Mean = 47$

Solving (b): The sample size of each group

This is the number of rows in each group.

Hence:

$n = 6$

Solving (c): Standard deviation (s)

This is calculated as:

$s = \sqrt{\frac{\sum (x - \bar x)^2}{N}}$

So, we have:

$s= \sqrt{\frac{(55 - 47)^2 + (31 - 47)^2 +......... + (43 - 47)^2}{18}}$

$s= \sqrt{\frac{4936}{18}}$

$s= \sqrt{274.22}$

$s= 16.56$

Solving (d): Square root of n

$\sqrt n = \sqrt 6$

$\sqrt n = 2.45$

Solving (e): SEM

This is calculated as:

$SEM = \frac{s}{\sqrt N}$

$SEM = \frac{47}{\sqrt{16.56}}$

$SEM = \frac{47}{4.07}$

$SEM = 11.55$

5 0

3 years ago

The perimeter of a rhombus is 84 inches. What is the length of each side of the rhombus? Explain

dmitriy555 [2]

Answer:

Each side of the rhombus is 21 inches

Step-by-step explanation:

A rhombus has 4 equal sides: So all sides are the same

So you take the total perimeter and divide it by 4

84/4=21

4 0

4 years ago