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IRINA_888 [86]
2 years ago
13

What is the product of (5−6i)(2−3i)

Mathematics
1 answer:
Lady_Fox [76]2 years ago
3 0

Answer:Multiply using the FOIL method, then combine the real and imaginary parts of the expression.

−

28+3i

Step-by-step explanation:

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Answer:

Step-by-step explanation:

What I can see from this are many things. First of all, the girls achieved a higher score than the boys since the girls got a higher mean then the boys. This means that if we were to take the average score of each gender, the girls got a higher score. To find the average/mean you need to find the sum of the data set then divide it with the number of data entries. The boys had a smaller range than the girls, which means that the scores the boys achieved were closer than the girls. The higher the range the more likely your data is scattered. The lower your range, the more likely your data is contained of similar numbers. You figure out the range but subtracting your highest data point from your lowest data point.

8 0
3 years ago
There are 20 members of a basketball team.
spin [16.1K]

Answer:

a)125970

b)95040

c)35640

Step-by-step explanation:

a) selecting 12 player from 20 players can be one in ^{20} C_{12}

 ^{20} C_{12} = \frac{20!}{12!X (20-12)!}

          =  \frac{20!}{12!X8!}

          = 125970

b) since each position has an identity permutations can be used so

   Number of ways = ^{12} P_{5}

                                = \frac{12!}{(12-5)!}

                                = \frac{12!}{7!}

                                = 95040

c) coach permutes 4 players for position other than centers in  ^{12}P_{4} ways and selects center in 3 ways

  so, number of ways = ^{12}P_{4}X3

                                     =\frac{12!}{8!}X3

                                     =35640

3 0
3 years ago
A letter home to the parents of seniors at Westgate High School says, "a simple random sample of 30 Westgate seniors that took t
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Answer:

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Step-by-step explanation:

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3 0
2 years ago
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Hunter-Best [27]

Answer:

I say answer number 2

Step-by-step explanation:

4 0
2 years ago
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Please help me :):)):):
Verdich [7]

Answer:

12

Step-by-step explanation:

5^2 + b^2 = 13^2

25 + b^2 = 169

169-25= 144

take the square root of 144

answer: 12

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2 years ago
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