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Keith_Richards [23]
3 years ago
9

8m/3 = 6/11 ?!?!?!?!?!?!?!?!?!?!?!?!!??!?!?!?!?!?!?!??!

Mathematics
1 answer:
GalinKa [24]3 years ago
5 0

Answer:

cross multiply

(8m)(11)=(6)(3)

88m=18

then divide by 88 on both sides

m=18/88 then reduce by 2 -----> 9/44

Step-by-step explanation:

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You have been assigned to determine whether more people prefer Coke or Pepsi. Assume that roughly half the population prefers Co
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Answer:

n=\frac{0.5(1-0.5)}{(\frac{0.03}{1.96})^2}=1067.11  

And rounded up we have that n=1068

Step-by-step explanation:

For this case we have the following info given:

ME=0.03 the margin of error desired

Conf= 0.95 the level of confidence given

The margin of error for the proportion interval is given by this formula:  

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    (a)  

the critical value for 95% of confidence is z=1.96

We can use as estimator for the population of interest \hat p=0.5. And on this case we have that ME =\pm 0.03 and we are interested in order to find the value of n, if we solve n from equation (a) we got:  

n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}   (b)  

And replacing into equation (b) the values from part a we got:

n=\frac{0.5(1-0.5)}{(\frac{0.03}{1.96})^2}=1067.11  

And rounded up we have that n=1068

3 0
4 years ago
Multiply the polynomials.
slavikrds [6]
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Option A

Elena need to ride around the  loop four or more times

<em><u>Solution:</u></em>

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Then she will ride the same way  home

She wants to ride a total of at least 22 miles

<em><u>Given inequality is:</u></em>

3t + 10 > 22

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<em><u>Solve fot "t" in given inequality</u></em>

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