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Andru [333]
4 years ago
13

The time that it takes to service a car is an exponential random variable with rate 1. (a) If Lightning McQueen (L.M.) brings hi

s car in at time 0 and Sally Carrera (S.C) brings her car in at time t, what is the probability that S.C.’s car is ready before L.M.’s car? Assume that service times are independent and service begins upon arrival of the car. Be sure to: 1) define all random variables used. 2) explain how independence of service times plays a part in your solution. 3) show all integration steps. (b) If both cars are brought in at time 0, with work starting on S.C.’s car only when L.M.’s car has been completely serviced, what is the probability that S.C.’s car is ready before time 2?
Mathematics
1 answer:
Genrish500 [490]4 years ago
4 0

Answer:I’m not really sure

Step-by-step explanation:

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a homework assignment included 40 multiple choice questions Sabrina completed 65% of her assignment in David completed 4/5 of hi
bazaltina [42]

Answer:

6 or -6

Step-by-step explanation:

  1. 65% of 40=26
  2. 4/5 of 40=32
  3. 32-26=6
  4. (or if you start with 26)
  5. 26-32=-6
7 0
3 years ago
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What is the formula to calculate the surface area of a rectangular prism with a cube removed?
ch4aika [34]
<span> 2ab + 2bc + 2ac the formula for the rectangular prism and i'm guessing you would find the answer to this than you would find your formula for the cube which is </span><span><span>6 a </span>2 and you would find that answer. 
</span>You would take your total for the rectangular prism answer and subtract the cube answer from it and you would probably get your answer. 
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3 0
3 years ago
Simplify (x^2-8x+2) - (3x^2+x-1)
REY [17]

Answer:

−2x^2 − 9x + 3

Hit Brainliest if this was helpful! :)

5 0
2 years ago
PLLEASE ANSWER THIS FOR ME
stiv31 [10]

Answer:

<h2>120 square meters</h2>

Step-by-step explanation:

To find the SA of 2 Triangles, we will use the formula... B x H, and the Base and Height is going to be the dimensions of just 1 triangle, but it's going to give the answer for 2 triangles, in this shape, we have 2 triangles.

SA = B x H

= 6 x 4

= 24

24 square meters for both of the triangles

Now, let's find the SA of the rectangle on the bottom...

SA = L x W

= 6 x 6

= 36

36 square meters for 1 of the 3 rectangular parts, the one on the bottom

Now, lets find the SA of the 2 rectangles on the top. We'll use the dimensions of 1 rectangle and find the answer for 2 answers by using the formula...

SA = L x W x 2

= 6 x 5 x 2

= 30 x 2

= 60

60 square meters for the 2 rectangles on the top.

Now, we have to add all of our answers.

24 + 36 + 60 = 120 square meters

<h2>Hence, the SA (surface area) of this shape is 120 square meters.</h2>

~Brainly Master - Helping Students~

4 0
3 years ago
I need help with my math homework
Rashid [163]
Hello. This is how to do it...

Step 1: Figure out what "N" means.

Step 2: Multiply whatever "N" means by -4

Step 3: Subtract  -4 times "n"

Hope this will help! Im sorry if i was a pain tho...
5 0
3 years ago
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