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3 years ago

BRAINLIEST IF YOU HELP the correct simplification of 7x2(6x + 3x2 − 4)? A 21x4 − 42x3 + 28x2 B 42x4 + 21x3 − 3x2 C 21x4 + 42x3 −

28x2 D 42x4 − 13x3 + 11x2

Mathematics

1 answer:

exis [7]3 years ago

3 0

$\text{Simplify:}\\\\7x^2(6x + 3x^2- 4)\\\\\text{Use the distributive property:}\\\\42x^3+21x^4-28x^2\\\\\text{You can arrange them by exponent}\\\\21x^4+42x^3-28x^2\\\\\text{This means that your answer will be C).} 21x^4 + 42x^3 - 28x^2\\\\\boxed{\text{C).}\,\,21x^4 + 42x^3 - 28x^2}$

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3 years ago

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Answer:

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Mode: mode is the number seen the most, but there is no repeating values

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Step-by-step explanation:

add all the values together, and divide by how many values you have, so 646/9= 71.777777777............

<u>Median:</u>

the number in the middle of the sequence

<u>Range:</u>

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3 years ago

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gavmur [86]

Answer:

(-9,12)

Step-by-step explanation:

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3 years ago

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igor_vitrenko [27]

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3 years ago

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krek1111 [17]

<h3>Answer: 138,240 cubic cm</h3>

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It's no coincidence that the cubing operation or cubed exponent ties directly to the concept of things like volumes in cubic cm.

In this case, x = 12 cm is the side length of each small cube. The volume of each small cube is x^3 = 12^3 = 12*12*12 = 1728 cubic cm.

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