3 years ago

PLEASE HELP I WANNA PASS

Mathematics

1 answer:

myrzilka [38]3 years ago

5 0

Answer:

y=mx+b

Step-by-step explanation:

edge

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PilotLPTM [1.2K]

Karen sells 7 hot dogs per hour while Henry sells 14 hot dogs .

The rate that Henry sells hot dogs is double the rate that Karen sells corn dogs.

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3 years ago

What are the zeros of the function? what are their multiplicities? f(x)=x^4-4x^3+3x^2

-Dominant- [34]

Since each term contains x, x= 0 is one answer Also as x^2 is a factor it has duplicity 2.
Factoring:-

x^2 (x^2 - 4x + 3) = 0
x^2( x - 3)(x - 1) = 0

so x = 3 and x = 1 are also zeros

Answer:- x = 0 (duplicity 2), x = 1 and x = 3.

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2 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.

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gtnhenbr [62]

3 is the lower quartile

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tiny-mole [99]

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Step-by-step explanation:

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