Which operation should you perform last in the expression 12 × 42?

Mathematics

2 answers:

GrogVix [38]2 years ago

6 0

Answer:

The order of operations requires that all multiplication and division be performed first, going from left to right in the expression.

Step-by-step explanation:

notsponge [240]2 years ago

3 0

First, consider expressions that include one or
more of the arithmetic operations: addition,
subtraction, multiplication, and division. The
order of operations requires that all
multiplication and division be performed first,
going from left to right in the expression.

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Answer:

Step-by-step explanation:

$f(x) = \frac{2x + 6}{3x} \\ \\ g(x) = \frac{ \sqrt{x} - 8}{3x}$

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That's

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$\frac{2x + 6}{3x} - \frac{ \sqrt{x} - 8}{3x} = \frac{2x + 6 - ( \sqrt{x} - 8) }{3x} \\ = \frac{2x + 6 - \sqrt{x} + 8 }{3x} \\ = \frac{2x - \sqrt{x} + 6 + 8 }{3x}$