1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Archy [21]
3 years ago
13

PLEASE ANSWER!! Every second, an elevator either has a 50% chance of going up and a 50% chance of going down. If the elevator st

arts at floor 15, what is the probability that, after 5 seconds, the elevator is at floor 18?
THANK YOU AND SHOW YOUR WORK PLEASE!
Mathematics
2 answers:
expeople1 [14]3 years ago
6 0

Answer:

The number of ways to assing 7 floors to 5 passengers is 7⋅7⋅7⋅7⋅7

Step-by-step explanation:

Marina86 [1]3 years ago
3 0

Answer:

the answer is 3 over 18

Step-by-step explanation:

it is in statistics

You might be interested in
Could someone help please?
Semenov [28]
The answer should be 17 because if the triangles are congruent, angle RTS would be equal to angle YZX. So, 2x+24=4x-10
Subtract 2x from both sides to get the variable on one side
24= 2x-10
Then you can add 10 to both sides
34= 2x
Divide by 2
x=17
8 0
3 years ago
On a coordinate plane, a point is 7 units up on the y-axis. Which of the statements are true? On a coordinate plane, a point is
Andru [333]

Answer:

The second one

The third one

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The radioactive isotope carbon-14 is present in small quantities in all life forms, and it is constantly replenished until the o
Korvikt [17]

Answer:

a) k = 0.000124

b) According to these data, the Shroud of Turin has around 760 years.

Step-by-step explanation:

The amount of carbon-14 is modeled by the following equation:

C(t) = C_{0}e^{-kt}

In which C_{0} is the initial amount and k is the rate of decrease.

(a) Find the value of the constant k in the differential equation.

Half-life of 5595 years.

So C(5595) = 0.5C_{0}

C(t) = C_{0}e^{-kt}

0.5C_{0} = C_{0}e^{-5595k}

e^{-5595k} = 0.5

Applying ln to both sides

-5595k = -0.69

k = 0.000124

b) In 1988 three teams of scientists found that the Shroud of Turin, which was reputed to be the burial cloth of Jesus, contained about 91 percent of the amount of carbon-14 contained in freshly made cloth of the same material. How old is the Shroud of Turin, according to these data?

This is t when C(t) = 0.91C_{0}

C(t) = C_{0}e^{-kt}

0.91C_{0} = C_{0}e^{-0.000124t}

e^{-0.000124t} = 0.91

Applying ln to both sides

-0.000124t = -0.094

t = 760.57

According to these data, the Shroud of Turin has around 760 years.

8 0
4 years ago
The rate (in mg carbon/m3/h) at which photosynthesis takes place for a species of phytoplankton is modeled by the function P = 8
Novosadov [1.4K]

Answer:

At ; I = 3,  P is at maximum

Step-by-step explanation:

P ( I ) = [ \frac{80 I}{I^2 + I + g } ]

at  I = 3

P" ( I ) < 0

therefore at  I = 3   the value of P( I ) is at maximum

attached below is the detailed solution

6 0
3 years ago
I GIVE 5 STARS AND THANKS!! <br> Look at the screenshot--help??
Pani-rosa [81]
The store offers 10 type/color combinations. But, it can be 25 if you want to be technical .
4 0
3 years ago
Other questions:
  • Simplify the expression.<br> 3 (15- 3)² - 4 ]
    10·1 answer
  • 1st ANSWERER GETS BRAINLIEST even if their wrong
    7·1 answer
  • Sam has 15 books in his library what is the integer ​
    10·1 answer
  • If there are 850 students at school and eats 4oz of hamburger for lunch how many pounds did the students eat
    14·2 answers
  • if 5 kids are reading books in the library and they're are 12 kids and the other kids want to read to but it takes 33 minutes to
    11·1 answer
  • 2x-y=-2 <br><br> -x-2y=4 <br><br> estimate the coordinates
    9·1 answer
  • Determine the factors of 5x2 + 29x _ 6
    11·2 answers
  • mike purchases a $11,350 car w/a loan from a credit union that requires a 20% down payment. What will mike borrow from the credi
    14·1 answer
  • What is the total value of digit 7 in the number 32.8794​
    11·1 answer
  • Determine the initial value
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!