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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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Area= <br> Help me please!! Thanks
Lera25 [3.4K]

The area of square LMNP is 50

<h3>What is a circle?</h3>

A circle is the locus of points equidistant from a fixed point which is known as the center of the circle.

A circle is defined if the center and the radius is known.

Analysis:

Perimeter of a circle = 2πr

Given perimeter = 10π

2πr = 10π

2r = 10

r = 10/2 = 5

r = MO

so the diagonal of the square is actually the diameter of the circle = 5+5 = 10

To find the side, x of the square the diagonal and the sides form a right-angled triangle, by  Pythagoras, 10^{2} = x^{2} + x^{2}

2x^{2} = 100

x^{2} = 100/2 = 50

Also area of square is x^{2} = 50

In conclusion, the area of square LMNP is 50

Learn more about circles: brainly.com/question/24375372

#SPJ1

5 0
1 year ago
A parking garage opens at 8am. Some cars are parked in the garage overnight. The graph shows the total number of cars in the gar
forsale [732]
The slope is 2, as for every 20 the graph rises, the line goes over 10, and the formula for slope is rise over run.
6 0
3 years ago
Read 2 more answers
Need help please would really be greatful
Rainbow [258]

Answer:

122°  

Step-by-step explanation:

The formula for finding the sum of all angles in a polygon is:

(n-2) * 180°

n is the number of angles

Here n = 7, so the sum of all angles is

(7-2) * 180°  = 900°

x = 900 - 128 - 130 - 120 - 115 - 145 - 140 = 122°

Make me the brainliest ;)

7 0
2 years ago
Which expression shows the prime factorization of 20?
Firlakuza [10]
The expression that lists all numbers in prime numbers would be A. All numbers here are prime numbers, and is in the simplified form, the remaining choices are not in their simplified forms and can be broken down into smaller numbers that multiply to give their value.
5 0
3 years ago
If BCDE is congruent to OPQR, then DE is congruent to _____.<br><br> (Options are attached)
aev [14]
This congruency thing is all about corresponding sides and angles.  In quadrilateral BCDE and OPQR, DE and QR are in corresponding positions.  You don't even have to draw them out to see that.  Just like you can say that angle B and angle O are corresponding, and side BC is corresponding to side OP.  Match them up; that's all there is to it!
3 0
2 years ago
Read 2 more answers
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