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gulaghasi [49]
3 years ago
10

An international calling plan charges a rate per minute plus a flat fee. A 10-minute call to France costs $3.19. A 15-minute cal

l to France costs $4.29. Write and solve a linear equation to find the cost of a 12-minute call to France
Mathematics
1 answer:
Vinil7 [7]3 years ago
7 0

y = 0.22(12) + .99 = 3.63

A 12 minute call will cost $3.63

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Which of the following is NOT a requirement of testing a claim about a population proportion using a formal method of hypothesis
Pie

Answer:

A. The lowercase​ symbol, p, represents the probability of getting a test statistic at least as extreme as the one representing sample data and is needed to test the claim.

Step-by-step explanation:

The conditions  required for testing  of a claim about a population proportion using a formal method of hypothesis​ testing are:

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8 0
2 years ago
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see explanation

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8 0
3 years ago
one eighth of the brass instruments are tubas. if there are 240 instruments in the band, how many are tubas?
Andrej [43]
Just do 240 times 1/8 which is the same thing as 240/8, which is 30
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2 years ago
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Scilla [17]

Answer:

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7 0
2 years ago
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