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3 years ago

11

Suppose that the time (in hours) required to repair a machine is an exponentially distributed random variable with parameter λ=0

.5. What is (a) the probability that a repair time exceeds 9 hours?

1 answer:

barxatty [35]3 years ago

6 0

Answer: 0.01111

Step-by-step explanation: find attached picture for explanation

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Verizon [17]

Answer:

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Step-by-step explanation:

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2 years ago

A rectangle has an area of 99 square in. What is the length of the long side?

OLga [1]

Answer:

The longer length is either 99, 33 or 11 inches

Step-by-step explanation:

Given

$Area = 99$

Required

The length of the longer side

Area of a rectangle is:

$Area = Length * Width$

List out all possible products that give 99 [Assume the dimension are whole numbers]

$Length * Width = 99 * 1 = 99$

$Length * Width = 33 * 3 = 99$

$Length * Width = 11 * 9 = 99$

List out the longer factors

$L = \{99, 33, 11\}$

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3 years ago

Four movie tickets cost $26.00 . How much do seven movie tickets cost?

sashaice [31]

Answer:

Hi! I suggest reading the explanation, it will help make this equation more simple.

↓↓↓

The answer is $45.50

Step-by-step explanation:

First, divide 26.00 by four. This will give you 6.5, so now you know that each ticket individually costs $6.5 or $6.50.

next, multiple 6.50 by 7.

this will give you 45.5 or $45.50.

double check your answer by dividing 45.50 by 7.

your answer should be 6.5 on a calculator.

that's all! hope this helped.

7 0

2 years ago