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natima [27]
3 years ago
12

Subtract 3a(a + b + c) – 2b(a – b + c) from 4c(–a + b + c). Please do not just tell the answer, I need to know how to solve this

and how it works. Since I do not know.
Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
3 0

Answer:

-3a² - ab - 7ac - 2b² + 6bc + 4c²

Step-by-step explanation:

Step 1: Distribute

3a² + 3ab + 3ac - 2ab + 2b² -2bc

Step 2: Combine like terms

3a² + ab + 3ac + 2b² - 2bc

Step 3: Distribute again

-4ac + 4bc + 4c² - (3a² +ab + 3ac + 2b² -2bc)

Step 4: Combine like terms again

-3a² - ab - 7ac - 2b² + 6bc + 4c²

And you have your final answer.

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Makovka662 [10]

Answer:

The probability of drawing an odd numbered ticket is 60%.

Step-by-step explanation:

Odd numbered tickets:

Probability of one is 1/5 plus half of 1/5.

P(X = 1) = \frac{1}{5} + \frac{1}{10} = \frac{3}{10}

Probability of 3 is half of 1/5.

P(X = 3) = \frac{1}{10}

Probability of 5 is 1/5. So

P(X = 5) = \frac{1}{5}

Probability of drawing an odd numbered ticket:

p = P(X = 1) + P(X = 3) + P(X = 5) = \frac{3}{10} + \frac{1}{10} + \frac{1}{5} = \frac{4}{10} + \frac{2}{10} = \frac{6}{10} = 0.6

0.6*100% = 60%

The probability of drawing an odd numbered ticket is 60%.

3 0
3 years ago
P1=1*1!<br> P2= 1*1! + 2*2!<br> P3=1*1! + 3*3!<br> Make a general rule for Pn.
soldi70 [24.7K]

Answer:

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Step-by-step explanation:

7 0
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What is the value of X?
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You research the cost of a gallon of gasoline over several years to look for a trend. The table shows your data. The line of bes
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Plotting the data to get the line of best fit, it is:
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Answer:

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Step-by-step explanation:

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