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Natasha2012 [34]
3 years ago
15

Simplify: (3a – 4b)(a + b). . A.. 3a2– ab – 4b2. . B.. 3a2 – 7ab – 4b2. . C.. 3a2 – 12ab – 4b2. . D.. 3a2 + ab – 4b2.

Mathematics
1 answer:
-Dominant- [34]3 years ago
3 0
To simplify the expression, we distribute terms accordingly. It is done as follows:

<span>(3a – 4b)(a + b)
3a</span>² + 3ab -4ab -4b²
3a² - ab -4b²

Therefore, the correct answer is option A, <span>3a^2– ab – 4b^2. 

Hope this answers the question. Have a nice day. Please feel free to ask more questions.</span>
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Jamie has a half-sheet cake. If she has six friends, how much will each one get?
sesenic [268]

Answer:

<h2>The answer is </h2><h2>B. 1/12</h2>

Step-by-step explanation:

step one:

From the problem state, we can actually conclude that Jamie wants to share the half sheet of cake among her 6 friends

step two:

we can express this problem mathematically as

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we can inverse the denominator and use a multiplication sign instead

\\\\= \frac{1}{2}*\frac{1}{6}

multiplying both denominators we have

\\\\= \frac{1}{12}

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8 0
3 years ago
Help solve <br> 9 = -7 -2y<br> And show the steps
Snowcat [4.5K]
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3 years ago
Please explain this answer ☹️
GuDViN [60]

Answer:

see explanation

Step-by-step explanation:

Note that cos315° = cos45° and sin315° = - sin45° and

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12(cos315° + isin315°)

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Marina CMI [18]

Answer:

Step-by-step explanation:

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3 years ago
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Karolina [17]
I think it is B
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