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IRINA_888 [86]
3 years ago
5

ANYONE SMART ENOUGH TO ANSWER THIS? WILL GIVE BRAINLIEST

Mathematics
2 answers:
marshall27 [118]3 years ago
7 0

Answer: -3

Step-by-step explanation: because 21 negative us bigger than 3, so then you do division 21 minus 3

Tems11 [23]3 years ago
5 0
i’m pretty sure the answer is 3
21 divided by 7 equals 3
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german

Answer:

D

Step-by-step explanation:

4x - 2(x + 3) = 8

Use distributive property

4x -2x - 6 = 8

2x - 6 = 8

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2x = 14

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6 0
3 years ago
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garik1379 [7]

Answer:

The probability that X is less than 32 minutes is 0.736.

Step-by-step explanation:

Given : The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift. If X has an average value of 24 minutes.

To find : What is the probability that X is less than 32 minutes?

Solution :

If X has an average value of 24 minutes.

i.e. \lambda=24

The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift.

The exponentially function is \frac{1}{\lambda}e^{-\frac{x}{\lambda}}

The function form according to question is

f(x)=\{\frac{1}{24}e^{-\frac{x}{24}}, x>0\}

The probability that X is less than 32 minutes is

P[x

P[x

P[x

Therefore, the probability that X is less than 32 minutes is 0.736.

7 0
2 years ago
What is the value of x? 24
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What is the problem about? Does x equal 24 in the problem?

Normally, x is an unknown variable that needs to be evaluated, so I don’t really know what x is at the moment. Please show me the problem so that I can solve the equation.
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