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2 years ago

Step 2: Multiply the number of feet in 32 cm by

Mathematics

1 answer:

Archy [21]2 years ago

6 0

Answer:

32 ft 12 in = 10.0584 m

Step-by-step explanation:

i didnt understand the question so i dont know if right

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During second period, Shawna completed a grammar worksheet. She got 44 questions correct and 36 questions incorrect. What percen

jasenka [17]

Answer:

44/80 x 100

=55%

Step-by-step explanation:

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2 years ago

Miguel and his brother Ario are both standing 3 meters from one side of a 25 meter pool when they decide to race. Miguel offers

nalin [4]

Since both of them are 3 meters from one side of the 25 meter pool, the distance that they have to cover is actually only 22 meters only. To answer this item, we let x be the distance covered by Ario and 22-x be his remaining distance. Such that,
x/(22-x) = 1/4
The value of x from the equation is 4.4.

Therefore, the distance that Ario had covered is 4.4 m.

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2 years ago

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Pat is a 23-year-old man. He earns a taxable income of $70,000.00, and the effective

Studentka2010 [4]

Answer:

$12,594.71

Step-by-step explanation:

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2 years ago

Students will randomly select a tile from a bag containing one red, one yellow, one blue and one green tile. and then roll a cub

natta225 [31]

Answer: 25 PERCENT

Step-by-step explanation:

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2 years ago

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A public health official is planning for the supplyof influenza vaccine needed for the upcoming flu season. She wants to estimat

Marizza181 [45]

Answer:

$n=\frac{0.5(1-0.5)}{(\frac{0.04}{1.64})^2}=420.25$

And rounded up we have that n=421

Step-by-step explanation:

We know that the sample proportion have the following distribution:

$\hat p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 90% of confidence, our significance level would be given by $\alpha=1-0.90=0.1$ and $\alpha/2 =0.05$ . And the critical value would be given by:

$z_{\alpha/2}=-1.64, z_{1-\alpha/2}=1.64$

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)

And on this case we have that $ME =\pm 0.04$ 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)

We assume that a prior estimation for p would be $\hat p =0.5$ since we don't have any other info provided. And replacing into equation (b) the values from part a we got:

$n=\frac{0.5(1-0.5)}{(\frac{0.04}{1.64})^2}=420.25$

And rounded up we have that n=421

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3 years ago