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Bumek [7]
3 years ago
9

30p question

Mathematics
2 answers:
timama [110]3 years ago
5 0

Subtract the average from the sales to get the deviation.

Aug. 1700 - 1412.50 = 287.50

Sept. 1125 - 1412.50 = -287.50

Oct. 1850 - 1412.50 = 437.50

Nov. 1500 - 1412.50 = 87.50

Dec. 1050 - 1412.50 = -362.50

ch4aika [34]3 years ago
5 0

Answer:Aug.  287.50

Sept.  -287.50

Oct.   437.50

Nov.  87.50

Dec.  -362.50

Step-by-step explanation:

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In a survey, 672 adults were asked what television programs they had recently watched. The following information was obtained: 2
OlgaM077 [116]

Answer:

a. the Big Game = 263

b. the Big Game but not the New Movie = 159

c. at least one program = 446

d. both programs = 104.

Step-by-step explanation:

Given that:

Total adults asked about TV programs, n(U) = 672

Total adults who watch New Movie, n(A) = 287

Let n(B) be the number of adults who watch Big Game.

Total adults who watch New Movie but not Big Game, n(A-B) = 183

As per formula:

n(A-B) = n(A) - n(A \cap B)

Where n(A \cap B) is the number of adults who watch New Movie and Big Game both.

n(A \cap B) = n(A) - n(A-B)

n(A \cap B) = 287 - 183 = 104

<u>Formula:</u>

n(U) = n(A \cup B) + n(A \cup B)'

n(A \cup B) is the number of adults who watch at least one program.

n(A \cup B)' is the number of adults who do not watch any program.

Given that n(A \cup B)' = 226

Putting values in the above formula:

672 = n(A \cup B) + 226

n(A \cup B) = 672 - 226 = 446

<u>Formula:</u>

n(A \cup B) = n(A) + n(B) - n(A \cap B)

446 = 287 + n(B) - 104

n(B) = 446 + 104 - 287

n(B) = 263

The number of adults who watch the Big Game but not the New Movie, <em>n(B - A)</em>

<u>Formula:</u>

n(B - A) = n(B) - n(A \cap B)

n(B - A) = 263 - 104 = 159

So, the number of surveyed adults who watch:

a. the Big Game, n(A) = 263

b. the Big Game but not the New Movie, n(B - A) = 159

c. at least one program, n(A \cup B) = 446

d. both programs, n(A \cap B) = 104.

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I need help on this question
trasher [3.6K]
B and d because you can rotate it to make the same shape
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alexandr402 [8]

Answer:

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Step-by-step explanation:

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2 years ago
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Question 10, 4.A.27
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A positive integer is 17 more than 26 times another. Their product is 2259. Find the two integers
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a * b = 2259
a = 17 + 26*b

Solve using substitution in a system of equations.
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