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2 years ago

Help plz need help will make mi day if u help

Mathematics

2 answers:

mafiozo [28]2 years ago

6 0

Answer:

2 1/4 i believe correct me if im wrong

Step-by-step explanation:

Masja [62]2 years ago

6 0

1 4/8 hope this helps

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Wats the volume of a cube 8ft by8ft

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Assuming that the cube has equal dimensions, it would be:

8 x 8 x 8 = 512 ft^3

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Which of the following has no effect on the monthly payment?

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length of buyers driving record

Step-by-step explanation:

it just is because the driving record has nothing to do with monthly payments

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Jaylon makes twice as much an hour as Sam. Sam makes x dollars an hour. Write an expression describing how much Jaylon makes an

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2 years ago

E. Solve the Inequality

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$\blue{\textsf{\textbf{\underline{\underline{Question:-}}}}$

Solve the Inequality.

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x<-4

$\blue{\textsf{\textbf{\underline{\underline{How\:to\:Solve:-}}}}$

First, add 6x on both sides:

-2x+3+6x<-13

Add the x's:

4x+3<-13

Now, subtract 3 on both sides:

4x<-13-3

4x<-16

Divide by 4 on both sides:

x<-4

So the values of x that are less than -4 will make the given inequality true.

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7 0

1 year ago

Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $30,

REY [17]

Answer:

a) 217

b) 1351

c) 5403

Step-by-step explanation:

Given that:

confidence interval (c) = 0.95

$\alpha =1-0.95=0.05\\\frac{\alpha }{2} =\frac{0.05}{2}=0.025$

The Z score of $\frac{\alpha }{2}$ is from the z table is given as:

$Z_{\frac{\alpha }{2} }=Z_{0.025}=1.96$

Range = $45000 - $30000 = $15000

The standard deviation (σ) is given as:

$\sigma=\frac{Range}{4} =\frac{15000}{4}=3750$

Sample size (n) is given as:

$n=(\frac{Z_{\frac{\alpha}{2} }\sigma}{E} )^2$

a) E = $500

$n=(\frac{Z_{\frac{\alpha}{2} }\sigma}{E} )^2= (\frac{1.96*3750}{500} )^2$ ≈ 217

b) $n=(\frac{Z_{\frac{\alpha}{2} }\sigma}{E} )^2= (\frac{1.96*3750}{200} )^2$ ≈ 1351

c) $n=(\frac{Z_{\frac{\alpha}{2} }\sigma}{E} )^2= (\frac{1.96*3750}{100} )^2$ ≈ 5403

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2 years ago

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