MATHEMATICS MIDDLE SCHOOL

The voltage V of an audio speaker can be represented by V= 4 sqrt P ​, where P is the power of the speaker. An engineer wants to design a speaker with 361 watts of power. What will the voltage​ be?

Answers

Answer 1
Answer:

The voltage of an audio speaker is 76 volts.

Given that

The voltage V of an audio speaker can be represented by \rm V = 4√(P).

Where P is the power of the speaker.

An engineer wants to design a speaker with 361 watts of power.

We have to determine

What will the voltage​ be of an audio speaker?

According to the question

The voltage V of an audio speaker can be represented by \rm V = 4√(P).

The power of the audio speaker = 361 watts

The voltage of an audio speaker is;

\rm V = 4√(P)\n\n\rm V = 4√(361)\n\nV = 4 * 19\n\nV = 76

Hence, the voltage of an audio speaker is 76 volts.

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Answer 2
Answer:

Answer:

Voltage=76\ volts

Step-by-step explanation:

Given\ V=4√(P)\n\nwhere\ V\ is\ voltage\ and\ P\ is\ Power.

Here\ power\ is\ given\n\nP=361\ watts\n\nSubstitute\ P\ in\ the\ given\ equation\n\nV=4√(P)\n\nV=4√(361)\n\nV=4√(19* 19)\n\nV=4* 19\n\nV=76\ volts

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Answers

Answer:

c. acute

Step-by-step explanation:

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( 2 x 4 ) x 7 = 2 x (7 x 4 ) What Property does this demonstrate?

Answers

The equation (2 x 4) x 7 = 2 x (7 x 4) demonstrates the Associative Property of multiplication.

The Associative Property states that for any three numbers a, b, and c, the way we group them in a multiplication operation will not change the final result. Mathematically, it can be expressed as:

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In the given equation, we have (2 x 4) x 7 on the left side and 2 x (7 x 4) on the right side. Let's compute each side step-by-step to see how the property applies.

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Right side: 2 x (7 x 4) = 2 x 28 = 56

As we can see, both sides result in 56, demonstrating that the outcome remains consistent, irrespective of how we group the numbers. In this case, we multiplied 2 and 4 first (left side) and 7 and 4 first (right side) before performing the final multiplication. The Associative Property assures us that we will always get the same answer, regardless of the grouping.

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Hi There!

( 2 x 4 ) x 7 = 2 x (7 x 4 ) represents the associative property of multiplication. The associative property states of multiplication states, that you can multiply  even  how the numbers are grouped.

You can test this you're self.

1. Multiply 2*4=8    8 *7=56

2. 7*4=28   28*2=56

In conclusion, ( 2 x 4 ) x 7 = 2 x (7 x 4 ), uses the associative property of multiplication.

Hope this helps :)

A rectangular closet has a perimeter of 10 feet. If the width of the closet is 3 feet what is the length of the closet?

Answers

The perimeter is equal to 2 * width + 2 * length.
We are provided that the width is 3 feet and the perimeter is 10 feet. So,
2 * 3 + 2 * length = 10
6 + 2 * length = 10
2 * length = 4
length = 2
The answer is 2 because if 2 sides are 3, then you add 3+3 which is 6. Then you think what plus 6 equals 10 which is 4. Finally, you have to take 4 and split it in half which is 2. Your answer is 2.

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Answers

Answer:

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Step-by-step explanation:

Answer:

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Step-by-step explanation:

12x - 84 = 4x + 12. What does X equal?

Answers

Answer:

12

Step-by-step explanation:

To solve the problem, you have to leave the x alone,

To do so, you have to add 84 on each side

12x = 4x + 96

Then, subtract 4x on each side,

8x = 96

Then divide each side by 8, so

x = 12

Hope it helps!!

Let me know if I'm wrong or you need help on anything else!!

Also, if you're okay with it, can you plz make be brainliest?

Answer:

x = 12

Step-by-step explanation:

12x - 84 = 4x + 12

We want to move x to one side and all other values to the other side of the equal sign

Add 84 to both sides of the equation

12x - 84 + 84 = 4x + 12 + 84

Simplify

12x = 4x + 96

Subtract 4x from both sides

12x - 4x = 4x - 4x + 96

Simplify

8x = 96

Divide both sides by 8

8x /8 = 96/8

Simplify

x = 12

What is the number pattern from 10 to 30 to 90 to ? and ? to ?

Answers

The pattern is multiplied by three. 10(3)=30, 30(3)=90, 90(3)=270, 270(3)=810, 810(3)=2430.
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