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bezimeni [28]
3 years ago
8

A self-serve car wash charges $5.81 to use its facilities, plus an additional $0.77 for each minute the customer is at the self-

serve car wash. If Tiffany was at the car wash for 7 minutes, how much was she charged?
A. $6.58
B. $12.81
C. $11.20
D. $5.39
Mathematics
1 answer:
Zigmanuir [339]3 years ago
3 0

Answer:

C. $11.20.

Step-by-step explanation: Just times the minutes by the $0.77 cents then plus the $5.81 to the answer getting your final answer.

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VikaD [51]

Correction:

I think the question should be like that find the approximate value of

P(-0.78 < z < 1.16)?


Now,

the symbol Ф represent the cumulative density.

first find the

Ф(1.16) from the above given table which is equal to 0.8770.

Now,

find the Ф(-0.78) .

in our table we are given the value of Ф(0.78)=0.7823

so as the curve is symmetrical Ф(-0.78)=1-0.7823=0.2177


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= 0.8770-0.2177

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6 0
3 years ago
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IgorC [24]
The area under the graph of the continuous uniform distribution is 1.
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b. The probability that the value will be between 2 and 3 is the are between 2 and 3.
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5 0
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baherus [9]
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