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3 years ago

5

Ummmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm help plz? :)

1 answer:

Daniel [21]3 years ago

7 0

Answer:

1. factor

2. prime number

3. composite number

4. GCF

5. LCM

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Work out the total surface area of this hemisphere which has a radius of 8cm.

Masja [62]

$\bf \textit{surface area of a sphere}\\\\ SA=4\pi r^2~~ \begin{cases} r=radius\\ \cline{1-1} r=8 \end{cases}\implies SA=4\pi (8)^2\implies SA=256\pi \\\\\\ \stackrel{\textit{half of that for a \underline{hemi}sphere}}{\cfrac{256\pi }{2}\implies 128\pi \implies }\stackrel{\textit{rounded up}}{402.1}$

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2 years ago

The Ohio Department of Agriculture tested 203 fuel samples across the state in 1999 for accuracy of the reported octane level. F

OlgaM077 [116]

Answer:

The Sample size is 1918.89035

Step-by-step explanation:

Consider the provided information.

It is given that 14 out of 105 samples failed.

Therefore p = 14/105 = 0.13 3... and q=1-0.133=0.867

Samples would be needed to create a 99 percent confidence interval.

Subtract the confidence level from 1, then divide by two.

$\frac{(1 -0.99)}{2}=0.005$

By standard normal table z=2.5758≈2.58

Calculate the sample size as:

$n=\frac{z^2pq}{e^2}$

Where, e is the margin of error,

Substitute the respective values.

$n=\frac{(2.58)^2(0.133)(0.867)}{(0.02)^2}=1918.89$

Hence, the Sample size is 1918.89035

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2 years ago

Hello please help thanks

ikadub [295]

Answer:

most likely the last choice

Step-by-step explanation:

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2 years ago

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What kind of triangle is this pls someone answer

Salsk061 [2.6K]

Answer: Isosceles Triangle (if that was what you were looking for)

Step-by-step explanation:

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2 years ago

A credit Card offers an APR of 15.83% and compounds interest daily. which is it most likely to advertise, it’s a APR or effectiv

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Answer:

Its APR, because it's 1.32% less than its effective interest rate.

Step-by-step explanation:

APEX

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3 years ago