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monitta
3 years ago
13

The table below shows the number of restaurants advertisement in a city directory.

Mathematics
1 answer:
ollegr [7]3 years ago
5 0
8 + 13 + 14 + 7 = 42

Chinese = 8/42
Simplified = 4/21
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Suppose that IQ scores in one region are normally distributed with a standard deviation of . Suppose also that exactly of the in
olga55 [171]

Answer: Hello your question is poorly written attached below is the complete question

answer : 101.8

Step-by-step explanation:

Given data :

Standard deviation ( б ) = 14

55% have IQ scores > 100

45% have IQ scores < 100

<u>Determine the mean IQ score for the region</u>

P ( X > x ) =

P ( Z ≥ ( 100 - μ ) / 14 ) = 0.55    also

P ( Z ≤ ( 100 - μ ) / 14 ) = 0.45

<em>using standard normal calculator </em>

100 - μ  / 14  = Z₀.₄₅ = - 0.126

<em>resolving the relation above</em>

100 - μ  / 14  = - 0.126

μ = 100 - 14 ( -0.126 )

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7 0
3 years ago
Let U = {1, 2, 3, 4, 5, 6, 7}, A= {1, 3, 4, 6}, and B= {3, 5, 6}. Find the set A’ U B’
Art [367]

Answer:

Step-by-step explanation:

A'={2,5,7}

B'={1,2,4,7}

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8 0
3 years ago
What is the product?<br><br> (6r − 1)(−8r − 3)
xxMikexx [17]

-2r - x - 3 ............


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A circular rug has a diameter of 3 feet. Part A What is the area in square feet, of the rug rounded to the nearest whole number?
lidiya [134]

Answer:

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Step-by-step explanation:

Given that:

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2 years ago
Find the product of 4/5 and 5/12 put in simplest form
kotegsom [21]

Hello!

The answer is 20/60 simplest form is 1/3

To get 20/60 you must multiply the Numerator by Numerator (4*5) and Denominator by Denominator (5*12). Your answer will be 20/60.

To get 1/3 you must simplify a number that can go into 20 and 60 (which is 10). Divide 20/10 and 60/10 and get 2/6. Simplify 2/6 by 2 and get 1/3.

3 0
3 years ago
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