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3 years ago

Are the these expressions equivalent 6a + 12 and 3(3a + 4)

Mathematics

2 answers:

kow [346]3 years ago

5 0

Answer:

Step-by-step explanation:

6a + 12 =? 3(3a + 4)

Distribute

6a+12 =? 3*3a + 3*4

6a+12 =? 9a +12

The expressions are not equivalent

igor_vitrenko [27]3 years ago

3 0

Answer:

No, these expressions aren't equivalent.

Step-by-step explanation:

They aren't equivalent because you can't simplify the expression 6a+12 so 3(3a+4) isn't equivalent. Hope this helps! :)

<h3>CloutAnswers</h3>

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Write an equation for the line parallel to y = -7x + 15 that passes through the point P(9,-6).

Elan Coil [88]

Answer:

y = -7x + 57

Step-by-step explanation:

If the line is parallel, it will have the same slope. So, this line will also have a slope of -7.

Use y = mx + b, plug in the slope and given point, and solve for b:

y = mx + b

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Plug in the slope and y intercept into y = mx + b:

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3 years ago

How the heck do you do this?!

Dennis_Churaev [7]

Use PEMDAS to figure out the order of operations:

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Exponents
Multiplication/Division
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Solve (-4 + -6) first, as this is in parentheses:

$-4 + -6 = -10$

$10 - 5.3 * -10$

Solve 5.3 * -10 next, as this is multiplication:

$5.3 * -10 = -53$

$10 - -53$

Now we can solve the equation:

$10 - -53 = 63$

The answer is 63.

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