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BaLLatris [955]
3 years ago
8

1. A is a quadrilateral with exactly one pair of parallel sides.

Mathematics
2 answers:
strojnjashka [21]3 years ago
8 0

Answer:

So what’s the question?

Step-by-step explanation:

mr_godi [17]3 years ago
3 0
What is the question your trying to get the answer to?
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What is 321×23 <br><br> one more thing<br><br> what is 3,829÷1221
Archy [21]
321 times 23 is 7,383
3,829 divided by 1,221 is (rounded to the nearest hundredth) 3.14
(the real number was: 3.13595414)
3 0
3 years ago
Write an expression that can be used to check the quotient of 646 ÷ 3
Ipatiy [6.2K]
646/3=x
To check it: x*3 should =646
5 0
3 years ago
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A cookie factory monitored the number of broken cookies per pack yesterday.
trapecia [35]

Answer:

Confidence Interval - 2.290 < S < 2.965

Step-by-step explanation:

Complete question

A chocolate chip cookie manufacturing company recorded the number of chocolate chips in a sample of 50 cookies. The mean is 23.33 and the standard deviation is 2.6. Construct a 80% confidence interval estimate of the standard deviation of the numbers of chocolate chips in all such cookies.

Solution

Given  

n=50

x=23.33

s=2.6

Alpha = 1-0.80 = 0.20  

X^2(a/2,n-1) = X^2(0.10, 49) = 63.17

sqrt(63.17) = 7.948

X^2(1 - a/2,n-1) = X^2(0.90, 49) = 37.69

sqrt(37.69) = 6.139

s*sqrt(n-1) = 18.2

s\sqrt{\frac{n-1}{X^2 _{(n-1), \frac{\alpha }{2} } } \leq \sigma \leq s\sqrt{\frac{n-1}{X^2 _{(n-1), 1-\frac{\alpha }{2} } }

confidence interval:

(18.2/7.948) < S < (18.2/6.139)

2.290 < S < 2.965

8 0
3 years ago
Find the supplement of the angle.<br> A=133 degrees.
andrey2020 [161]
The supplement is 47
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3 years ago
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When h is one-half and j is one-third, g is 4. if g varies jointly with h and j, what is the value of g when h is 2 and j is 3?
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I don’t know the answer to this question
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2 years ago
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