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sasho [114]
2 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]2 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 11-16 please! Thank you
sasho [114]

11. -1

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15. 10

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3 0
2 years ago
Find the exact value of T Image below
Elanso [62]

Answer:

a) 1/800 or 0.00125

b) i) 0.0013

ii) 0.001

c) 60%

Step-by-step explanation:

T = [tan(2×30)+1][2cos(30)-1] ÷ (y²-x²)

T = (tan60 + 1)(2cos30 - 1) ÷ (41² - 9²)

T = (sqrt(3) + 1)(sqrt(3) - 1) ÷ 1600

T = (3-1)/1600

T = 2/1600

T = 1/800

T = 0.00125

Error: 0.002 - 0.00125

0.00075

%error

0.00075/0.00125 × 100

60%

4 0
3 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
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xenn [34]

Answer:

for part A its C and for B its 2

Step-by-step explanation:

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