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3 years ago

A microwave is the only electric device in a 120-volt circuit. If the circuit has 7.5

Mathematics

1 answer:

bogdanovich [222]3 years ago

4 0

The electric power of microwave is 900 watts.

Step-by-step explanation:

Given,

Voltage in the circuit = 120 volts

Current in the circuit = 7.5 amp

Electric power of microwave = Voltage*Current

Electric power of microwave = $120*7.5$

Electric power of microwave = 900 watts

Therefore,

The electric power of microwave is 900 watts.

Keywords: current, power, multiplication

Learn more about multiplication at:

#LearnwithBrainly

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ANEK [815]

Let z = 3x+2. Then, by substitution, your equation is
.. z^2 +7z -8 = 0

_____
This equation can be factored as
.. (z +8)(z -1) = 0
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.. 3x +2 = -8 or +1
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2 years ago

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The local train heading for Westford at 60km/h and the express train heading for Eastford at 80 km/h pass each other at Centervi

Wewaii [24]

Answer:

The maximum distance to the nearest kilometer between Westford and Centerville is 111.43 km.

Step-by-step explanation:

Local train stats:

Rate = 60 km/h

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Express train stats:

Rate = 80 km/h

Distance = $(195-x)$ km

Time = $(195-x)/80$ hours

Now we will equate both the times.

$x/60 =(195-x)/80$

$x/3= (195-x)/4$

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x = 83.57 km

$195-x=195-83.57= 111.43$ km

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3 0

2 years ago

Find the slope of the line

Elza [17]

Answer:

-3'1

-6'1

Step-by-step explanation:

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2 years ago

A right triangle has legs that measure 7 cm and 6 cm. What is the length of the hypotenuse in meters?

dalvyx [7]

<h2>Greetings!</h2>

Answer:

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Step-by-step explanation:

You need to remember the following equation:

$a^{2} + b^{2} = c^{2}$

Where a and b is the lengths of the two sides and c is the hypotenuse.

So simply plug these values into this:

$6^{2} + 7^{2} = h^{2}$

36 + 49 = h^2

36 + 49 = 85

So the hypotenuse is the square root of 85:

$\sqrt{85} = 9.22$

<h2>Hope this helps!</h2>

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2 years ago

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Vinil7 [7]

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2 years ago