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AURORKA [14]
3 years ago
13

Homework help, no need to explain answer

Mathematics
1 answer:
Ainat [17]3 years ago
8 0

Answer:

Square each side

Subtract 1  from each side

Divide by 3

Step-by-step explanation:

sqrt(3x+1) = 4

Square each side

(sqrt(3x+1))^2 = 4^2

3x+1 = 16

Subtract 1  from each side

3x+1-1 = 16-1

3x= 15

Divide by 3

3x/3 = 15/3

x = 5

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. A used car dealer says that the mean price of a two-year old sedan (in good condition) is at least $20,500. You suspect this c
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Answer: There is sufficient evidence to reject the dealer's claim that the mean price is at least $20,500

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given that;

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from the table, the area under the t-distribution of the left of (t=-2.244) and for (df=13) is 0.0215

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There is sufficient evidence to reject the dealer's claim that the mean price is at least $20,500

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