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andrey2020 [161]
3 years ago
11

-5-3 what does it equal

Mathematics
2 answers:
Leni [432]3 years ago
6 0
-8 is the answer to your question
Scorpion4ik [409]3 years ago
5 0

Answer:

(-5)-3 = (-8)

here you go!

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Suppose a sample of 972972 tenth graders is drawn. Of the students sampled, 700700 read above the eighth grade level. Using the
max2010maxim [7]

Answer:

The 85% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level is (0.259, 0.301).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, 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 1 - \frac{\alpha}{2}.

For this problem, we have that:

972 students, 700 read above the eight grade level. We want the confidence interver for the proportion of those who read at or below the 8th grade level. 972 - 700 = 272, so n = 972, \pi = \frac{272}{972} = 0.28

85% confidence level

So \alpha = 0.15, z is the value of Z that has a pvalue of 1 - \frac{0.15}{2} = 0.925, so Z = 1.44.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.28 - 1.44\sqrt{\frac{0.28*0.72}{972}} = 0.259

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.28 + 1.44\sqrt{\frac{0.28*0.72}{972}} = 0.301

The 85% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level is (0.259, 0.301).

3 0
3 years ago
It takes a word processor 26 minutes to word process and spell check 6 pages. Find how long it takes her to word process and spe
zalisa [80]

Answer:

It takes the word processor 117 minutes to word process and spell check 27 pages.

Step-by-step explanation:

With the information provided, you can use a rule of three to find how long it would take to word process and spell check 27 pages given that it takes 26 minutes to word process and spell check 6 pages:

6 pages   →  26 minutes

27 pages  →          x

x=(27*26)/6=117 minutes

According to this, the answer is that it takes the word processor 117 minutes to word process and spell check 27 pages.

6 0
3 years ago
Please help or I am going to fail <br> what do I graph I don't know what I am doing
KonstantinChe [14]
Y=-1/5x+3 the 3 would be the y intercept and the -1/5 is your slope and you would start at the 3 and use your slope and go down one and over five since it’s negative
7 0
2 years ago
Can someone help me with this problem! I WILL GIVE A BRAINIEST!!! I need it asap PLEASE.
Llana [10]

Answer:

(

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Step-by-step explanation:

6 0
3 years ago
Estimate 24 x 2.31 ________ x ______=
Anna11 [10]

Answer:55.44

24 x 2.31 equals 55.44

Step-by-step explanation: I have do my work

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3 years ago
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