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3 years ago

What is 1/4 converted to

Mathematics

2 answers:

jeyben [28]3 years ago

5 0

Like into a percentage or?

Mashutka [201]3 years ago

3 0

What do you need to convert it too..?
if it is a decimal it is 0.25
if it is a percent it is 25%

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Consider the matrix shown below:

balu736 [363]

Answer:

Its Not C or B, tried em and got em wrong

Step-by-step explanation:

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3 years ago

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How do I solve this?

Bad White [126]

Answer: 81

Step-by-step explanation:

3^4

3x3x3x3

3x3=9

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27x3=81

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2 years ago

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1:0,1+2:0,2+3:0,3...+9:0

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2 years ago

A teacher was interested in knowing the amount of physical activity that his students were engaged in daily. He randomly sampled

klasskru [66]

Answer:

The standard error of the mean is 4.5.

Step-by-step explanation:

As we don't know the standard deviation of the population, we can estimate the standard error of the mean from the standard deviation of the sample as:

$\sigma_{\bar{x}}\approx\frac{s}{\sqrt{n}}$

The sample is [30mins, 40 mins, 60 mins, 80 mins, 20 mins, 85 mins]. The size of the sample is n=6.

The mean of the sample is:

$\bar{x}=\frac{1}n} \sum x_i =\frac{30+40+60+80+20+85}{6}=52.5$

The standard deviation of the sample is calculated as:

$s=\sqrt{\frac{1}{n-1}\sum (x_i-\bar x)^2} \\\\ s=\sqrt{\frac{1}{5}\cdot ((30-52.5)^2+(40-52.5)^2+(60-52.5)^2+(80-52.5)^2+(20-52.5)^2+(85-52.5)^2}\\\\s=\sqrt{\frac{1}{5} *3587.5}=\sqrt{717.5}=26.8$

Then, we can calculate the standard error of the mean as:

$\sigma_{\bar{x}}\approx\frac{s}{\sqrt{n}}=\frac{26.8}{6}= 4.5$

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3 years ago

Help 6th grade math i will give brainliest

andriy [413]

Answer:

1) 125

2) 1

3) 27

Step-by-step explanation:

1) 5*5*5=

125

2) whenever there is an exponent of 0, the number is 1

3) 3*3*3=

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2 years ago