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larisa86 [58]
3 years ago
10

What is the square root of 64?

Mathematics
2 answers:
Ksju [112]3 years ago
8 0
The anwer is 8 hope i helped
Natalija [7]3 years ago
4 0

Solution, \sqrt{64}=8

Steps:

\sqrt{64}

\mathrm{Factor\:the\:number:\:}\:64=8^2,\\\sqrt{8^2}

\mathrm{Apply\:radical\:rule}:\quad \sqrt[n]{a^n}=a,\\\sqrt{8^2}=8,\\8

\mathrm{The\:Correct\:Answer\:is\:8}

\mathrm{Hope\:This\:Helps!!!}

\mathrm{-Austint1414}

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2 years ago
A hairdryer transfers 36,000J in one minute, what is the power rating of the hairdryer?
Verdich [7]

Answer:

1. 600 watts

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Step-by-step explanation:

1. Energy = 36 000 J , t = 1 minute = 60 seconds

Power = \frac{energy}{time}

           = \frac{36000}{60}

          = 600 watts

2. Power = \frac{work done}{time}

⇒ work done = Power × time

                      = 99 × 360

                      = 35640 J

3. Efficiency = (Output / Input) × 100

                    = \frac{55}{100} × 100

                    = 55%

4. Work done = Force × distance

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5. Given that 1 KWh cost 2p, Power = 4 KW and time = 4 hours.

  Power = \frac{energy}{time}

Energy = Power × time

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The cost of running the fire = \frac{16}{2}

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3 0
2 years ago
What is the percent of 5/8
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3 years ago
In April, the number of cars sold was 546.
Maksim231197 [3]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
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