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Anastaziya [24]
3 years ago
11

Factor this problem 20+6c-2c^2=

Mathematics
1 answer:
statuscvo [17]3 years ago
8 0
Hi there!
We are given the equation 20 + 6c - 2c², and are told to factor it. Well, to do this, we can first rearrange the terms in decreasing order: -2c² + 6c + 20. Next, we see that we can take out a common factor -2 from the whole equation. This gives us -2(c² - 3c - 10). Now, we take the constant term, -10, and we find all it's factors. 
-1 10
-10 1
-5 2
-2 5
Now, find the sums of the factors.
-1 + 10 = 9
-10 + 1 = -9
-5 + 2 = -3
-2 + 5 = 3
We see that the only pair of factors that add up to -3 are -5 and 2. Now, we can factor the whole equation to -2(c + 2)(c - 5). Hope this helped!
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Lina20 [59]

Answer:

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Step-by-step explanation:

To multiply mixed numbers, first change any mixed number to an improper fraction. Then multiply the numerators together and the denominators together

1 1/3 as an improper fraction is 4/3 and 2 2/4 as an improper fraction is 10/4.

4*10=40

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5 0
3 years ago
6.5. Does Spending Measure Welfare? Suppose a community spends $1 million on salaries and equipment for its police department. B
marta [7]

Answer:

(a) Measured GDP will decrease by $200,0000

(b) No

Step-by-step explanation:

(a) Gross Domestic Product (GDP) is the total value in monetary terms of al the goods produced in a geographic location.

There will be a $200,000 decrease in the value of the GDP of the community as a result of reduction in the community spending from $1 million to $800,000.

(b) Generally, GDP is not a true indicator of welfare, likewise in this case, GDP does not reflect the welfare of the community.

There's a decrease in the community spending from $1 million to $800,000 but there's an increase in the welfare of the community as a result of decrease in crime rate.

8 0
3 years ago
Joanie is 11 5 6 years old. Nancy is 1 1 3 years older than Joanie and Jane is 1 1 4 years older than Nancy. How old is Jane?
Elina [12.6K]

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Step-by-step explanation:

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3 years ago
Thaw relationship between a distance in yards and the same distance in miles is described by the equation
balandron [24]

Answer:

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Step-by-step explanation:

3 0
3 years ago
I need help on NUMBER 8.
valkas [14]
Explanation: I know that these two angles are supplementary, so I know by adding them, they equal 180 degrees.

Math: x+30+(3x+10)=180
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X=35

Substitute your X values back in.
X+30
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=65

3x+10
3(35)+10
=115
3 0
4 years ago
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