All categories

4 years ago

In the diagram what is m

Mathematics

1 answer:

Dahasolnce [82]4 years ago

4 0

Where is the diagram?

You might be interested in

What is more precise 7 m or 7.7 m

zimovet [89]

7.7 because it is more specific into the whole number but not just that and the decimal

3 0

3 years ago

Please simplify<br> 1,056=6(x+19)

bulgar [2K]

Answer: x = 157

Step-by-step explanation:

$1056=6\left(x+19\right)$

Switch sides:

$6\left(x+19\right)=1056$

Divide both sides by 6:

$\frac{6\left(x+19\right)}{6}=\frac{1056}{6}$

Simplify:

$x+19=176$

$x+19-19=176-19$

$x=157$

8 0

3 years ago

The ages of registered voters in Smith County are normally distributed with a population standard deviation of 3 years and an un

eimsori [14]

Answer:

The margin of of error for a 95% confidence interval for the population mean is of 1.39 years.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.025 = 0.975$ , so Z = 1.96.

The margin of error is:

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

Population standard deviation of 3 years

This means that $\sigma = 3$

Sample of 18 voters

This means that $n = 18$

Margin of error:

$M = z\frac{\sigma}{\sqrt{n}}$

$M = 1.96\frac{3}{\sqrt{18}}$

$M = 1.39$

The margin of of error for a 95% confidence interval for the population mean is of 1.39 years.

3 0

3 years ago

Pamela used 3/4 m of ribbon to make 10 birthday cards . How much ribbon does she use for each card ?

djverab [1.8K]

I am not 100 percent sure but i think you multiply and the answer is 7.75 if not then try to divid how you get 7.75 is you make 3/4 into a decimal and that becomes 0.75 them multiply by 10 and get 7.75

7 0

3 years ago

Free brainlyist jus follow

IgorC [24]

Answer:

*followed*

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers