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Zepler [3.9K]
3 years ago
8

Please help me solve -2(-3-3n)+1

Mathematics
2 answers:
vivado [14]3 years ago
8 0

Answer:

6n +7

Step-by-step explanation:

You cannot solve since this is an expression, you can only simplify

-2(-3-3n)+1

Distribute the -2

-2*-3 -2*-3n +1

6 +6n +1

Combine like terms

6n +7

kenny6666 [7]3 years ago
4 0

Answer:

7+6n

Step-by-step explanation:

First you have to distribute -2

That will give you 6+6n+1

After that you have to combine like terms 6+1

The answer is 7+6n

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The formula for electrical power (P, in watts) is where V is the voltage in volts and R is the resistance in ohms. For a particu
Firlakuza [10]

Answer:v=√(pr) 4volts

Step-by-step explanation:

v=√(pr)

v=√(32×0.5)

v=√(16)

v=4volts

4 0
3 years ago
Simplify to create an equivalent expression. -k-(-8k+7)
const2013 [10]

Answer:

7k -7

Step-by-step explanation:

-k-(-8k+7)

Distribute the minus sign to all terms in the parentheses

-k--8k-7

Ad negative negative is a positive

-k + 8k -7

Combine like terms

7k -7

8 0
3 years ago
How do I find the answers to 17, 19, and 20?
Irina18 [472]

Answer:

17. 6

18. 18 (as shown)

19. 10/3 = 3 1/3

20. 20/3 = 6 2/3

Step-by-step explanation:

17. For this, you can subtract the given length GB=12 from the length you found for problem 18, BF=18. Doing that tells you FG = 18-12 = 6, as you have marked on the diagram.

19. As with median BF, the point G divides it into two parts that have the ratio 1:2. The distance from G to D is the shorter of the distances, so you have ...

... GD = (1/3) CD = (1/3)·10 = 10/3

... GD = 3 1/3

20. You can subtract GD from CD to get CG, or you can multiply CD by 2/3. The result is the same either way.

... CG = CD -GD = 10 -3 1/3

... CG = 6 2/3

_____

<em>Comment on centroid and median</em>

The centroid (G) divides each median into parts in the ratio 1:2. Hence the shorter of those parts is half the length of the longer one, or 1/3 the total length of the median.

The longer of the parts is double the length of the shorter one, or 2/3 the total length of the median.

Your marking of median BF seems to show an understanding of these relationships. (Total length: 18; length of parts: 6 and 12.)

3 0
3 years ago
Solve for w.<br> 40+4w=12w
Xelga [282]

Answer:

W=5

Step-by-step explanation:

40+4w=12w

-4w -4w

40= 8w

÷8 ÷8

5=w

7 0
3 years ago
How do you write 3,500 in scientific notation
kolbaska11 [484]
To write a number in scientific notation put the decimal after the first digit and drop the zeros and to find the exponent count the number of places from the decimal to the end of the number to express 3,500 use 3.5 x 10 ^ 3 or 3.5E03
4 0
3 years ago
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