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shusha [124]
2 years ago
14

Somebody help me solve;

Mathematics
1 answer:
Nadya [2.5K]2 years ago
3 0
P(at least 5 rolls until 1) = P(4 rolls are not 1) = 5/6 x 5/6 x 5/6 x 5/6 = 0.4823 (4sf)

Fewer than 7 rolls to get second 1 after first takes 3 rolls means second occurs on 4th, 5th or 6th roll
The probability of each of these is 1/6, 5/6 x 1/6 and 5/6 x 5/6 x 1/6 respectively.
P(second 1 on 4th, 5th or 6th roll) = 1/6 + 5/36 + 25/216 = 91/216 = 0.4213 (4sf)
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A supermarket offers a delivery service. If a customer pays $9 per month, each delivery costs just $2. Write an equation that sh
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The linear function that models the total cost for x deliveries is:

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A linear function has the following format:

y = mx + b

In which

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  • b is the y-intercept, that is, the value of y when x = 0.

In this problem:

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  • Cost of $2 for each delivery, thus m = 2.

The function for the <u>total cost for x deliveries is:</u>

y(x) = 2x + 9

A similar problem is given at brainly.com/question/16270359

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