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Ray Of Light [21]
3 years ago
14

The coach of a tennis team is holding tryouts and can take only 2 more players for the team. There are 5 players trying out. How

many different groups of 2 players could possibly be chosen?
Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
4 0

Answer:

10 possible combinations of 2 player groups

Step-by-step explanation:

used a combinations calculator

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The lengths of text messages are normally distributed with a population standard deviation of 3 characters and an unknown popula
slava [35]

Answer:

25.4, 28.6

Step-by-step explanation:

Given parameters

sample size, n = 24

sample mean, X = 27

population standard deviation, s = 3

critical value, Zα/2, where α = 0.01

99% confidence Interval, CI, is given as follows

CI = X ± Zα/2 × (s/√n)

Zα/2 = Z0.01/2 = Z0.005 = 2.576

CI = 27 ± 2.576 × (3/√24)

   = (25.42 ,28.57)

5 0
3 years ago
Which values from the set {-6,-4,-3, -1 0 and 2} satisfy this inequlity? -1/2x+3>5
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Answer:

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Step-by-step explanation:

-1/2x + 3 > 5 /*-2

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x<-4

x=-6

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lorasvet [3.4K]

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(-1 1/2,3

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Solve the system y= 4x + 1 and 3x+2y =13
Irina18 [472]

Given :

{\qquad \sf \dashrightarrow  y= 4x + 1 \: –––– \sf \:  (i)}

{\qquad \sf \dashrightarrow   3x + 2y = 13 \: –––– \sf \:  (ii)}

Now, Substituing the value of y in equation (ii) :

{\qquad \sf \dashrightarrow   \: 3x + 2y = 13   }

{\qquad \sf \dashrightarrow   \: 3x + 2(4x + 1) = 13   }

{\qquad \sf \dashrightarrow   \: 3x + 8x + 2 = 13   }

{\qquad \sf \dashrightarrow   \: 11x + 2 = 13   }

{\qquad \sf \dashrightarrow   \: 11x  = 13 - 2   }

{\qquad \sf \dashrightarrow   \: 11x  = 11   }

{\qquad \sf \dashrightarrow   \: x  =  \dfrac{11}{11}    }

{\qquad \sf \dashrightarrow   \bf \: x  = 1   }

Now, substituting the value of x in equation (i) :

{\qquad \sf \dashrightarrow  y= 4x + 1}

{\qquad \sf \dashrightarrow  y= 4(1) + 1}

{\qquad \sf \dashrightarrow  y= 4 + 1}

{\qquad \bf \dashrightarrow  y= 5}

3 0
2 years ago
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suter [353]

Answer:120

Step-by-step explanation:

calculate the sum of the negetive numbers 3x-40

=120

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