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Sauron [17]
3 years ago
10

Please explain how you got your answers! (: Solve the problem by using the counting principle.

Mathematics
1 answer:
Natasha2012 [34]3 years ago
7 0
A. The number of fabric-pattern-color combinations is 4 * 13 * 9 = 468

B. P(1st choice) = no of novels / total books = 3/6 = 1/2
    P(2nd choice) = no of remaining novels/ total remaining books = 2/5
    P(both novels) = 1/2 * 2/5 = 1/5          (without replacement assumed)

C. P(1st choice) = no of biographies / total books = 2/6 = 1/3
    P(2nd choice) = no of remaining biographies/ total remaining books =        1/5
    P(both biographies) = 1/3 * 1/5 = 1/15          (without replacement                assumed)

D. P(1st choice) = no of history books / total books = 1/6
    P(2nd choice) = no of novels/ total remaining books = 3/5
    P(a history, then a novel) = 1/6 * 3/5 = 1/10          (without replacement assumed)
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you keep multiplying by five

Step-by-step explanation:

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3 years ago
Please help answer the following question
Elena L [17]

Answer:

D

Step-by-step explanation:

The unmarked angle of the triangle is also 40o. The triangle is marked with two equal sides (isosceles).

<2 + 40 + 40 = 180            Combine the left

<2 + 80 = 180                    Subtract 80 from both sides

<2 = 180 - 80

<2 = 100 degrees.

That's not the answer. We have to solve for x

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A local carpet company has been hired to carpet a planetarium which is in the shape of a circle. If the radius of the planetariu
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This is the concept of application of geometry and financial mathematics; To calculate for the total cost of the carpet we proceed as follows;
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area of carpet is given by:
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