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Alika [10]
3 years ago
10

55 pages in 25 minutes

Mathematics
1 answer:
Mila [183]3 years ago
8 0
2.2 pages per minute
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What is 16 tens + 4 ones
aalyn [17]
(16*0) + (4*1)
16*10 = 160
4*1 = 4
160 + 4
The answer is 164! :)

5 0
3 years ago
Read 2 more answers
A private and a public university are located in the same city. For the private university, 1038 alumni were surveyed and 647 sa
Snezhnost [94]

Answer:

The difference in the sample proportions is not statistically significant at 0.05 significance level.

Step-by-step explanation:

Significance level is missing, it is  α=0.05

Let p(public) be the proportion of alumni of the public university who attended at least one class reunion  

p(private) be the proportion of alumni of the private university who attended at least one class reunion  

Hypotheses are:

H_{0}: p(public) = p(private)

H_{a}: p(public) ≠ p(private)

The formula for the test statistic is given as:

z=\frac{p1-p2}{\sqrt{{p*(1-p)*(\frac{1}{n1} +\frac{1}{n2}) }}} where

  • p1 is the sample proportion of  public university students who attended at least one class reunion  (\frac{808}{1311}=0.616)
  • p2 is the sample proportion of private university students who attended at least one class reunion  (\frac{647}{1038}=0.623)
  • p is the pool proportion of p1 and p2 (\frac{808+647}{1311+1038}=0.619)
  • n1 is the sample size of the alumni from public university (1311)
  • n2 is the sample size of the students from private university (1038)

Then z=\frac{0.616-0.623}{\sqrt{{0.619*0.381*(\frac{1}{1311} +\frac{1}{1038}) }}} =-0.207

Since p-value of the test statistic is 0.836>0.05 we fail to reject the null hypothesis.  

6 0
3 years ago
Put the following integers in order from least to greatest.<br> {-22-, 63, 54, -89, -71, -10)
olchik [2.2K]
63>54>-10>-22>-89 :)
8 0
3 years ago
The diagram shows a triangle ABC where AB=AC , BC=AC, and ⦟BAC = 20 degree, find ⦟ADB​
Mariulka [41]

Answer:

hello something is wrong with the question. if ab= AC, and AC = BC, AB=BC, it'd make this an equilateral triangle and the degree wouldn't be 20 degrees

6 0
3 years ago
Trigonometry<br> Trigonometric Equations<br> cot x-√ 3=0; x[0,2π]
Sonbull [250]

Answer:

Step-by-step explanation:

cot x=√3

tan x=1/√3=tan π/6,tan (π+π/6)

=tan π/6,tan (7π/6)

x=π/6,7π/6

x

8 0
3 years ago
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