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vodka [1.7K]
3 years ago
13

The duration of a light bulb before it burns out follows an exponential distribution averaging 8 months. You are asked: 1) Calcu

late the probability that a randomly selected bulb has a life of between 3 and 12 months. 2) Calculate the probability that a light bulb, which has lasted more than 10 months, will last more than 25 months.
Mathematics
1 answer:
ludmilkaskok [199]3 years ago
6 0

Answer:

The bulb will last less than 800 hours is 0.550

Step-by-step explanation:

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Marissa's dance studio charges a monthly fee, plus a fixed amount per class.
Studentka2010 [4]

Answer:

Step-by-step explanation:

4 0
2 years ago
Daniels is considering two job offers: a full-time permanent position that pays $78,000 annually and a full-time contract job th
WITCHER [35]

Answer:

Option B,contract job

Step-by-step explanation:

It is likely the number of hours in a work week is 40 hours .

With fifty weeks in year 2020 and 10 ten days of Bank Holidays,the gross annual income from the contract full time employment can be computed thus

gross annual income=$40*40*(53-2)=$81,600

The pay is $40 per hour

In a week 40 hours are worked

There are fifty three weeks in the year minus 10 days of holiday which represents 2 working weeks for a Monday to Friday job

The gross annual income for full time permanent role is $78,000

As a result,the full time contract job pays more

                   

5 0
2 years ago
True or False, An integer divided by its opposite allways equals -1. This is false because of "0" is this correct?
valentinak56 [21]

An integer divided by its opposite always equals -1: this is false. Any number which is not 0 divided by it's opposite is in fact equal to -1, but since 0 is also an integer, it's false. You are right, good job!

4 0
2 years ago
Read 2 more answers
BRAINLIEST TO CORRECT HURRY
dlinn [17]

Answer:

-5 5/10, -32/40,5

whenever a number has a negative sign,the larger the number the smaller.

i.e (-55/10= -5.5) is smaller than -32/40=-0.8 and then the greatest is 5 since it is a positive number and positive numbers are greater than negative numbers.

4 0
2 years ago
Can someone answer this question please please help me I really need it if it’s correct I will mark you brainliest .
Harman [31]

Formula for the perimeter of a quarter circle: C = ((pi x 2r) / 4) + 2r

C = ((3.14 x 18) / 4) + 18

C = (56.52 / 4) + 18

C = 14.13 + 18

C = 32.13 miles

Hope this helps! :)

5 0
3 years ago
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