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sasho [114]
3 years ago
9

How much electricity is used, on average, by a security system that is always on over one year?

Mathematics
1 answer:
vampirchik [111]3 years ago
8 0
This would be equivalent to one<span> kilowatt (</span>1<span> kW) of </span>power<span> sustained for </span>one<span> ... A device using 100 watts </span>over<span> 10 hours would utilize 1kWh</span>
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Please help me with this ​
zzz [600]

Answer: Z'(-7;8)

suppose the coordinates of Z' is Z'(x,y)

we have:

\left \{ {{x=8.cos90-7.sin90=-7} \atop {y=8.sin90+7.cos90=8}} \right.

=> Z'(-7;8)

Step-by-step explanation:

3 0
3 years ago
HELPP PLSSSS Im failing school :(
hoa [83]

Answer:

D.540

if im wrong sorry

Step-by-step explanation:

6 0
2 years ago
What ides it mean by simplify?
MrRissso [65]
Putting it in simpler terms
7 0
2 years ago
Find the missing angle or find X?
Sindrei [870]
X = 60°
Because the square in the corner tells you that it is 90° (right angle)
So your equation to solve for x would be...
x + 30 = 90
Now you need to isolate the x.

Subtract both sides by 30.
x + 0 = 90 - 30
x = 60
3 0
2 years ago
Select the best answer to complete the sentence. A Rigid Motion or Isometry ______________________.
Dmitry_Shevchenko [17]

Answer: A. preserves length, angle measures and distance between points

Rigid motions or isometries are any of the three transformations below

  • translation (aka shifting)
  • rotation
  • reflection

Any of those three transformations will keep the figure the same size and shape. That means distances between any two points are kept the same, and angle measures are kept the same as well. Everything is kept the same. The only difference is that the figure is in a different location, is rotated somehow, or it is reflected some way. You can use a series of transformations to undo everything to get the original figure back.

If you wanted to change the size of the figure, then you would apply dilation, which isn't an isometry.

5 0
2 years ago
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