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nikdorinn [45]
3 years ago
8

The length of time for one individual to be served at a cafeteria is a random variable having an exponential distribution with a

mean of 4-minutes. what is the probability that a person is served is less than 3-minutes on at least 4 of the next 6 days?

Mathematics
1 answer:
Alisiya [41]3 years ago
7 0
I donu im just a kid that runs track. ahahahhahhahahha and plays roblox hahahahh

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Starting at noon, the temperature dropped steadily at a rate of 0.08 degrees Celsius every hour.
dangina [55]

Answer:

a. 55 hours

b. 1.9 degrees C

Step-by-step explanation:

This means for each hour the temperature drops 0.08. This is the expression 0.08x where x is number of hours.

a.) If the temperature has dropped 4.4, then 4.4 = 0.08x. Solving for x will give the number of hours it takes to drop 4.4.

4.4 = 0.08x

4.4 / 0.08 = x

55 = x

b.) If the temperature after 55 hours and dropping 4.4 is -2.5, then the temperature at the start would be -2.5 + 4.4 = 1.9. The temperature at noon was 1.9 degrees celsius.

6 0
2 years ago
Vertex A in quadrilateral ABCD lies at (-3, 2). If you rotate ABCD 180° clockwise about the origin, what will be the coordinates
natali 33 [55]

The rule for a rotation by 180° about the origin is (x,y) -->(−x,−y)

So A(-3, 2) to A'(3, -2)

Answer:

A'(3, -2)

4 0
3 years ago
Find the sum of the first 6 terms in the sequence -5 -25 -125 -625
sashaice [31]
This is a geometric sequence, so use the formula for the sum of a geometric sequence:
Sum = (a(r^n - 1))/(r - 1)
where a is the first term, -5
r is the common ratio, 5
and n is the number of terms

Thus,
Sum = ((-5)(5^6 - 1))/(5-1) = -19530
5 0
3 years ago
The sum of two numbers is 39. Their difference is 21. What are the two numbers?
mrs_skeptik [129]

Answer:

30 and 9

Step-by-step explanation:

x+y=39 , x-y=21

Solve for x:

x+y=39 , x-y=21

x= 30

Substitute x with 30:

(30)+y=39 , (30)-y=21

Solve for y:

y=9

4 0
2 years ago
Read 2 more answers
The sum of two consecutive integers is -239 find the two integers​
xenn [34]

Answer:

The two consecutive integers are -119 and -120

Step-by-step explanation:

As we know that these two integers are consecutive, that means that they will have a difference of 1. This means that we can find the two integers by adding 1 to the sum of -239 and then dividing it by two

1-239=-238\\\frac{-238}{2} =-119\\-119-1=-120

5 0
3 years ago
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