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vaieri [72.5K]
2 years ago
5

After unloading 96 pounds of mulch from the truck, there were still 24 pounds

Mathematics
1 answer:
Dennis_Churaev [7]2 years ago
4 0

Answer:

120

Step-by-step explanation:

To find the answer you just have to add 24 and 96 together to get 120.

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The length of a rectangular room is 6 feet longer than twice the width. If the room perimeter is 168 feet, what are the room's d
liberstina [14]
Length = 2 breadth +6
perimeter= 4(length+ breadth)
168=4(2breadth +6+breadth
42={3breadth+6)
14=breadth +2
breadth =12
length=30
hope u like the answer if yes mark !e brainlist
3 0
3 years ago
Read 2 more answers
You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable estimate for the
Vesna [10]

Answer:

A sample size of at least 1,353,733 is required.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of .

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

98% confidence level

So \alpha = 0.02, z is the value of Z that has a pvalue of 1 - \frac{0.02}{2} = 0.99, so Z = 2.327.  

You would like to be 98% confident that you esimate is within 0.1% of the true population proportion. How large of a sample size is required?

We need a sample size of at least n.

n is found when M = 0.001.

Since we don't have an estimate for the proportion, we use the worst case scenario, that is \pi = 0.5

So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.001 = 2.327\sqrt{\frac{0.5*0.5}{n}}

0.001\sqrt{n} = 2.327*0.5

\sqrt{n} = \frac{2.327*0.5}{0.001}

(\sqrt{n})^{2} = (\frac{2.327*0.5}{0.001})^{2}

n = 1353732.25

Rounding up

A sample size of at least 1,353,733 is required.

5 0
3 years ago
How do I solve this and what is the answer
expeople1 [14]
(-3) - (-3) = - 6
3 + (-3) = 0
4 0
3 years ago
Help! Find the domain of the graph
charle [14.2K]

Answer:

[-8,4]

Step-by-step explanation:

you look at the x-axis. The end points of the graph are -8 and 4, thus the domain would be [-8,4] as it is always written in left to right or bottom to top value.

hope it helps.

8 0
2 years ago
Pueden responder rápido por favor? tengo hasta las 10 :v
Marina CMI [18]

Answer:

what are u saying I asked my Spanish teacher and she said...

Step-by-step explanation:

its D idn why hm any way have a great day if u can understand what I'm saying :D

8 0
3 years ago
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