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3 years ago

Which procedure justifies whether -3x(5-4)+3(x-6) is equivalent to -12x-6?

Mathematics

2 answers:

NARA [144]3 years ago

8 0

Option (a) is correct.

Step-by-step explanation:

Given : Expressions 3x(5-4)+3(x-6) and -12x-6

We have to choose which option from the given options justifies the correct procedure to show the given two expressions are equivalent or not.

Since to check two given expressions are equivalent or not. Simply put the same value of unknown and evaluate the values of both the given expressions. If it comes out to be same then they are equivalent otherwise not.

Consider the given expression 3x(5-4)+3(x-6) and -12x-6

Evaluate both at x = 2

So, 3(2)(5-4)+3(2-6) = -18

and -12(2)-6 = -30

So both the expressions are not equivalent.

Hence, option (a) is correct.

DENIUS [597]3 years ago

4 0

Answer:

Step-by-step explanation:

-3x(5-4) + 3(x-6)

-15x + 12 + 3x - 18

-15x + 3x +12 - 18

-12x - 6

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3 years ago

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Step-by-step explanation:

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3 years ago

Pls help due in 10 minutes!!!

Luden [163]

Answer:

$\sf 500,000,000,000=5 \times 10^{11}$

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Step-by-step explanation:

Scientific notation

$\large\boxed{a \times 10^n}$

where:

$1\leq a < 10$

$n$ is any positive or negative whole number.

To convert a number into scientific notation, move the decimal point to the left or right until there is one digit to the left of the decimal point.

The number of times you have moved the decimal point is $n$ .

If the decimal point has moved to the left, $n$ is positive.
If the decimal point has moved to the right, $n$ is negative.

To convert 500,000,000,000 into scientific notation, move the decimal point 11 places to left, so a = 5. As we have moved the decimal point 11 places to the left, the exponent "n" is 11 and is positive.

$\implies \sf 500,000,000,000=5 \times 10^{11}$

To convert 0.00000000005 into scientific notation, move the decimal point 11 places to the right, so a = 5. As we have moved the decimal point 11 places to the right , the exponent "n" is 11 and is negative.

$\implies \sf 0.00000000005=5 \times 10^{-11}$

Learn more about scientific notation here:

brainly.com/question/28235385

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2 years ago

Read 2 more answers