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
kenny6666 [7]
3 years ago
5

If you use your office computer 40 hours per week, and do not unplug the computer when it is not in use, how much carbon dioxide

is produced from the “vampire energy” used by the computer in one year?
Mathematics
1 answer:
dangina [55]3 years ago
6 0
If you use a laptop:  9.25; a desktop with a CRT monitor:  55.51; a desktop with an LCD monitor:  46.26.

A laptop that is plugged up and turned off uses 0.001kw/hr of energy.  Each kwh of energy produces, on average, 1.39 lbs of CO2.  There are 24*7=168 hours in the week; subtract the 40 hour work week from this and we have 128 hours a week for 52 weeks a year:
0.001*128*52=6.656*1.39=9.25.

A desktop that is plugged up and turned off uses 0.004kw/hr of energy.  A CRT monitor uses 0.002 kw/hr when turned off.  This means we have:
(0.004*128*52*1.39)+(0.002*128*52*1.39)=55.51.

For a desktop and an LCD monitor, which uses 0.001 kw/hr of energy, we have:
(0.004*128*52*139)+(0.001*128*52*1.39)=46.26.
You might be interested in
4.601, 4.1011, 4.1, 4.61 order these numbers from least to greatest
Maksim231197 [3]

Answer:

4.1, 4.1011, 4.601, 4.61

Step-by-step explanation:

uhm the first number is the smallest and I ordered it increasing from left to right. it's correct

hope this helps babe <3

6 0
2 years ago
Can anyone explain this question to me? My teacher solved it but I didn’t understand how she did it
Amiraneli [1.4K]

Step-by-step explanation:

To find the space a figure takes, we need to find the volume. Volume of a rectangular prism can be found by multiplying the length, width, and height of the figure.

We can start with the green block. The dimensions of this figure are 6cm, 3cm, and 3cm. The 5cm at the bottom is not a dimension of the green figure. Instead, it shows the total width of both blocks. We will use this later.

Back to the first block, we will find its volume by multiplying its dimensions together.

3 · 3 · 6 = 54

So, the volume of the first block is 54 cm³.

To this, we will add the volume of the blue block. We can find its dimensions with some simple deduction.

The picture shows that the height of the figure is 4cm less than the height of the green one, 6cm.

6 - 4 = 2

The height, then, is 2cm.

The width can be found by subtracting the width of the green block from the total width of both figures, 5cm.

5 - 3 = 2

So, the width is also 2cm.

We can see that the length of the blue block is equal to that of the green one, so we know that the length is 3cm.

Now, multiply all the dimensions we have found together.

2 · 2 · 3 = 12

The volume of the blue block is 12cm³.

We have found the volumes of both figures, so now we can add them both together to find the total.

54 + 12 = 66

So, the total volume is 66cm³.

I hope this was a satisfactory explanation ^^ Good luck, mate

7 0
2 years ago
Hellllllpp mmmmeeeeee
FinnZ [79.3K]

Answer: quick math boi

Step-by-step explanation: photo maths

4 0
3 years ago
I need some help answering this
bazaltina [42]

Answer:

d

Step-by-step explanation:

sin angle (60) would have been equal to 0.5 or a 1/2

and cos angle(60) would have been equal to 0.86 then you'll say square by 3 over 2

Let me know if this answer can work

Best of Luck

8 0
1 year ago
What is the value of x in the equation 4x(2) - 36x + 81 = 0, written as a decimal
Aleks04 [339]

Answer:

2.89285714

or...

2.9 simplified

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • Find the equation of the line with the slope 1/2 which goes through the point (6,-3)
    14·1 answer
  • Compete the equatuon descibing how x and y are related
    13·1 answer
  • Find the derivative of the function using the definition of derivative. g(t) = 7 t g'(t) = State the domain of the function. (En
    15·1 answer
  • The weight of water is 62 1/2 per cubic feet. Water that weighs 325 lbs will fill how many cubic feet
    10·1 answer
  • Is this function one-to-one? Explain how you determine your answer
    14·1 answer
  • {1, 5, 10, 15} {1, 3, 5, 7} Which of the following shows the union of the sets?
    6·1 answer
  • Find the product.<br><br> y4 · y6
    9·2 answers
  • Sam buys 4 boxes of the Crispy Crunch Cereal at Store A. What fraction of the original price of each box of cereal does he pay p
    11·1 answer
  • Can someone help?? my teacher is gonna get angry at me if I don’t do this!!
    14·1 answer
  • Which of the following phrases are inequalities?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!