3 years ago

Hannah and Andrea were selling

Mathematics

2 answers:

Galina-37 [17]3 years ago

5 0

Answer:

Step-by-step explanation:

krok68 [10]3 years ago

5 0

Answer:

Step-by-step explanation:

just read to the first one

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Use function g, shown in the graph below.

Katyanochek1 [597]

You should search it up on Photomath is easier

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4 years ago

Read 2 more answers

Read through the solution below. Then, answer

serg [7]

Answer:

the answer is e=mc^2 I think

6 0

2 years ago

Please help! Picture Down Below!

guajiro [1.7K]

Angle 4 = Angle 5 = 42⁰( alternate interrior angle)

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3 years ago

Why is 210 divided by 30 the same as 21 tens divided by 3 tens

sveta [45]

Answer:

It is by definition. 210 means 21 tens or 21 * 10. 30 means 3 tens or 3*10.

Since there is a ten on the top and bottom of the divisor 210/30 is also the same thing as 21/3. All of which is 7 and all of which is true by definition.

Step-by-step explanation:

6 0

3 years ago

The compressive strength of concrete is normally distributed with mu = 2500 psi and sigma = 50 psi. A random sample of n = 8 spe

ipn [44]

Answer:

The standard error of the sample mean is _17.677_ psi.

Step-by-step explanation:

<u>Explanation</u>:-

A random sample of n = 8 specimens is collected.

Given sample size is n = 8

Given mean of the population 'μ' = 2500 psi

standard deviation 'σ' = 50 psi

Let x⁻ is the mean of the observed sample

Standard error of the sample mean = $\frac{S.D}{\sqrt{n} }$ ...(i)

Given Population of standard error (S.D) 'σ' = 50 psi

Now substitute all values in (i)

$S.E = \frac{50}{\sqrt{8} } =17.677$

<u>Conclusion</u>:-

The standard error of the sample mean is _17.677psi.

7 0

3 years ago