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
joja [24]
3 years ago
9

Exercise 8.8. Our faucet is broken, and a plumber has been called. The arrival time of the plumber is uniformly distributed betw

een 1 PM and 7 PM. Independently of when the plumber arrives, the time it takes to fix the broken faucet is exponentially distributed with mean 30 minutes. Find the expectation and variance of the time at which the plumber completes the project.
Mathematics
1 answer:
Nataliya [291]3 years ago
4 0
The answers is 4:30 I hope it helps
You might be interested in
In their savings accounts, Jim has $250 and Norma has $400. If Jim saves $350 a month and Norma saves $300 a month, how many mon
Zarrin [17]

Answer:

the answer is 2 months

Step-by-step explanation:

I think

8 0
3 years ago
Read 2 more answers
How many degrees are in an angle that turns through 3/4 of a circle
german

Answer:

270°

Step-by-step explanation:

360/4 = 90

90*3 = 270

4 0
2 years ago
Read 2 more answers
4 question in one 65 points
jeka94

Q6.

The slope-intercept form: y = mx + b

m - slope

b - y-intercept

We have: slope m = 3, y-intercept (0, 4) → b= 4

<h3>Answer: y = 3x + 4</h3>

Q7.

2x + 4y = 4     |subtract 2x from both sides

4y = -2x + 4     |divide both sides by 4

y = -0.5x + 1

Only second graph has y-intercept = 1.

<h3>Answer: The second graph.</h3>

Q8.

The point-slope form:

y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}

We have

(-16,\ 8)\to x_1=-16,\ y_1=8\\(4,\ -2)\to x_2=4,\ y_2=-2

Substitute:

m=\dfrac{-2-8}{4-(-16)}=\dfrac{-10}{20}=-\dfrac{1}{2}\\\\y-8=-\dfrac{1}{2}(x-(-16))\\\\y-8=-\dfrac{1}{2}(x+16)

<h3>Answer: The first equation.</h3>

Q9.

It's a vertical line. The equation of a vertical line is x = <em>a</em>, where <em>a</em> is any real number.

<h3>Answer: x = -4</h3>
6 0
3 years ago
Read 2 more answers
I want the answer to this , zoom in if you can't see well
galben [10]

We are going to need to know the formula for the lateral surface area and volume of a cylinder in order to find our answers. Below are the equations:

A_L = 2 \pi r h

V = \pi r^2 h

  • h is the height
  • r is the radius

Using these formulas, we can solve these problems.

A_L = 2 (3.14)(48.9) (84.3) \approx \boxed{25887.856}

V = (3.14) (48.9)^2 (84.3) \approx \boxed{632958.069}

3 0
3 years ago
11x + 10y - 8x - 12y<br><br> (a) x + -2y<br> (b) 3x + 2y<br> (c) -x + 2y<br> (d) 3x + -2y
svetoff [14.1K]

Answer:

d) 3x+-2y

Step-by-step explanation:

combine like terms of x and y

11x-8x=3x

10x-12x=-2y

brainliest?

8 0
3 years ago
Other questions:
  • The vale of 5^3 is<br><br> 216<br><br> 64<br><br> 15<br><br><br> 125
    6·1 answer
  • Is 7/8 an irrational number
    15·1 answer
  • Help!What does 5x+(-8)= ?
    14·1 answer
  • Cayden wants to buy a new bike that costs $191. This is $25 less then four times what he saved last month for the bike. How much
    10·1 answer
  • Given points A(3,7) and B(8, -3) are the end points of AB, calculate the coordinates of M, the midpoint.​
    11·1 answer
  • 5. Which function would have the point (0,0) on its graph?
    7·1 answer
  • I need to know how to solve this question
    12·1 answer
  • How do you draw a line of best fit on a scatter diagram
    7·1 answer
  • If Sue runs one mile every 7 minutes, and this relationship is graphed, which ordered pair would not be on the graph?
    10·1 answer
  • -3(7+6t)<br> Can you tell me the answer
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!