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mafiozo [28]
3 years ago
12

WHAT IS INTIAL AND FINAL FORM OF ENERGY FOR SINGING AND FOR A SHIRT IN THE SUNLIGHT

Mathematics
1 answer:
wel3 years ago
5 0

Answer: mechanical energy

Step-by-step explanation:

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How would the sum of cubes formula be used to factor x3y3 + 343? Explain the process. Do not write the factorization.
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Answer:

Given : Expression -x^3y^3+343

To find : How would the sum of cubes formula be used to factor given expression? Explain the process. Do not write the factorization.

Solution :

The formula of sum of cubes is,

a^3+b^3=\left(a+b\right)\left(a^2-ab+b^2\right)

First we convert the given expression in a^3+b^3

x^3y^3+343

Apply exponent rule : a^mb^m=(ab)^m

x^3y^3=(xy)^3

Rewrite 343=7^3

Therefore, x^3y^3+343  could be written as =\left(xy\right)^3+7^3

On comparison with the formula,

a=xy , b=7

\left(xy\right)^3+7^3=(xy+7)(xy^2-xy(7)+7^2)

\left(xy\right)^3+7^3=(xy+7)((xy)^2-7xy+49)            

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3 years ago
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Step-by-step explanation:

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A penguin can dive 48 meters below the surface of the water to reach a fish. It dives 2% of the total depth every 1 second.
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Luke and Joshua work at a dry cleaners ironing shirts. Luke can iron 35 shirts per
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Answer:

Step-by-step explanation:

Let x be the number of hours worked by Joshua.

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x = 240/60

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The number of hours worked by Joshua = 4 hours

The number of hours worked by Luke = 4 +3 = 7 hours

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3 years ago
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