2 years ago

Please help me with this

Mathematics

1 answer:

maria [59]2 years ago

6 0

Answer:

I think the answer is positive 8

Step-by-step explanation:

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3x=105???<br> helppp please

natali 33 [55]

Answer:

35 is the answer

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3 years ago

Whats 30 in. to 2 ft

Elena-2011 [213]

Answer:

Step-by-step explanation:

12 in is 1 foot

24 in is 2 foot

so you cant do this

but

it would more than

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2 years ago

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What is 3/4+.06? Please help I would really appreciate it thanks!

e-lub [12.9K]

3/4 =0.75
0.75+0.06=0.81

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2 years ago

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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

Alex Ar [27]

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

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3 years ago

If a 10 foot piece of electrical tape has 0.037 feet cut from it,then is the new length of tape ?

givi [52]

10.000 Feet - 0.037 Feet = 9.963 Feet

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3 years ago