3 years ago

PLZ HELP!!!!!!! (20 points)

Mathematics

1 answer:

AlekseyPX3 years ago

3 0

Answer:

Neither A nor B

Step-by-step explanation:

The set of pairs, where the front member of every sequence pair must be unique.

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Vic has 14 coins in nickels and quarters the value of this coins is 1.70 how many quarters does he have

marusya05 [52]

Answer:

4 quarters

Step-by-step explanation:

4 quarters = $1

14 nickels = $0.70

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2 years ago

Write an equation for a line that passes through (-4,8) and 8,-1

KatRina [158]

Slope is change in y over change in x.

Change in y is -9
Change in x is +12

So -9/12 or -2/3

Answer -2/3

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3 years ago

What is the gcf of 42 and 56 What is the gcf of 42 and 56

Sholpan [36]

[ Answer ]

[ Explanation ]

The GCF is the greatest number that goes into two numbers. 14 is the greatest number that goes into both 42 and 56 evenly.

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6 0

3 years ago

Read 2 more answers

Plz help ASAP!!!! I NEED IT!!!!!If you don't know the answer plz don't use an answer to say "oh idk" or sum like that

Monica [59]

Answer:

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Step-by-step explanation:

7 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:

Explanation:-

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)

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

Conclusion:-

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

7 0

3 years ago