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3 years ago

I need with number 16

Mathematics

1 answer:

Arturiano [62]3 years ago

4 0

Answer:

Ben will carry 63/8 or 7.9 of recycling.

Step-by-step explanation:

14 + 10 1/2 + 16 1/4 = 163/4 - 25 = 63/4 ÷ 2 = 63/8 or 7.9

Hope that helps :)

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Identify the type of sampling method used.A trucking company places their office phone number on the back of all of their vehicl

ziro4ka [17]

Explanation

In this sample, people elect to participate or self-select to do the survey. Often, these folks have a strong interest in the main topic of the survey.

In essence, they volunteer to inform the trucking company about the activities of their drivers. That makes this a voluntary sample.

Answer: Voluntary Sampling Method

7 0

1 year ago

What point does a direct variation equation always go through?

lisabon 2012 [21]

Answer:

The orgin, (0,0)

Step-by-step explanation:

If the line does not go through this point, then there is no direct variation.

5 0

3 years ago

Hi there. I am having an issue figuring out which is the base and which is the length.

Paha777 [63]

We can split the given figure in 2 right triangles:

So, in order to get the area of each triangle, we need to find the base, denoted by x in both of them. Since both are right triangles, we can to apply Pythagoresn theorem. By applying this theorem to right hand side triangle, we have

$x^2+8^2=17^2$

so we have

$\begin{gathered} x^2+64=289 \\ then \\ x^2=289-64 \\ x^2=225 \end{gathered}$

Then, x is given by

$x=\sqrt{225}=15$

Then, the area of the left triangle is given by

$A_1=\frac{base\times height}{2}=\frac{15\times36}{2}=270in^2$

Similarly, the area of the second triangle is given by

$A_2=\frac{base\times height}{2}=\frac{15\times8}{2}=60in^2$

Then, the area of the entire figure is the sum of the area of the 2 triangles, that is,

$A=A_1+A_2=270+60=330in^2$

Therefore, the answer is: 330 square inches

8 0

1 year ago

A sample of 16 small bags of the same brand of candies was selected. Assume that the population distribution of bag weights is n

Olegator [25]

Answer:

i) $2 - 1.64 \frac{0.1}{\sqrt{16}}= 1.959$

$2 + 1.64 \frac{0.1}{\sqrt{16}}= 2.041$

So then the 90% confidence interval is given by (1.959, 2.041)

ii) Figure attached

iii) $ME= 1.64 *\frac{0.1}{\sqrt{16}}= 0.041$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The confidence interval is given by this formula:

$\bar X \pm z_{\alpha/2} \frac{\sigma}{\sqrt{n}}}$ (1)

And for a 90% of confidence the significance is given by $\alpha=1-0.9=0.1$ , and $\frac{\alpha}{2}=0.05$ . Since we know the population standard deviation we can calculate the critical value $z_{0.05}= \pm 1.64$