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zloy xaker [14]
3 years ago
5

There are 10 students in a class. The teacher chooses 2 students to go to the library. The order in which they are chosen does n

ot matter. How many ways are there to choose the students?
Mathematics
2 answers:
Nonamiya [84]3 years ago
7 0

Answer: 45 for APEX

Step-by-step explanation:

sergiy2304 [10]3 years ago
4 0

Answer: 45

Step-by-step explanation:

10 * 9 / 2 = 45

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answer: 4

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Three multiplied by the sum of 4 and a number is the same as 12 more than the number. Find the number.
Bess [88]

Answer:

3(4+n) = 12+n is an equation that could be used.

12n = 12+n

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Step-by-step explanation:

7 0
3 years ago
Please help as soon as possible.Answer correctly while showing detailed working​
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I hope this helps you

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How much trail mix will each person get if 5 people share 1/2 pound of trail mix?
Viktor [21]
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3 years ago
Even though the population standard deviation is unknown, an investigator uses z rather than the more appropriate t to test a hy
Marta_Voda [28]

Answer:

a) The level of significance is large because here z is not appropriate.

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Step-by-step explanation:

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b) The true critical value is larger than that of the critical z, this is because the level of significance is large.

t* in P(T > t*) = 0.975 is more than z* = 1.96 in P(z> z*) =0.975

3 0
3 years ago
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