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frez [133]
3 years ago
6

Which expression is equivalent to -3(2m-1)-n

Mathematics
2 answers:
KatRina [158]3 years ago
8 0
-6m+3-n is equivalent to -3(2m-1)-n
Sergeu [11.5K]3 years ago
7 0

Answer:

-6m-n+3.

Step-by-step explanation:

We have been given an expression -3(2m-1)-n. We are asked to find the equivalent expression to our given expression.

Using distributive property a(b+c)=ab+ac, we will get:

-3\times 2m-3\times-1-n

-6m+3-n

-6m-n+3

Therefore, the expression -6m-n+3 is equivalent to our given expression.

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Helga [31]

QUESTION:

The code for a lock consists of 5 digits (0-9). The last number cannot be 0 or 1. How many different codes are possible.

ANSWER:

Since in this particular scenario, the order of the numbers matter, we can use the Permutation Formula:–

  • P(n,r) = n!/(n−r)! where n is the number of numbers in the set and r is the subset.

Since there are 10 digits to choose from, we can assume that n = 10.

Similarly, since there are 5 numbers that need to be chosen out of the ten, we can assume that r = 5.

Now, plug these values into the formula and solve:

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= 10!5!

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3 years ago
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Kipish [7]

The point-slope form:

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We have the points (1, 2) and (3, 6). Substitute:

m=\dfrac{6-2}{3-1}=\dfrac{4}{2}=2\\\\\boxed{y-2=2(x-1)}

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3 years ago
A photo is 4 inches wide. It is placed inside a frame with a border that is x inches wide. The total width of the photo and the
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seropon [69]

Answer:

100%

Step-by-step explanation:

Start with x.

x = x/1

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1.6x/0.8

Do the division.

1.6x/0.8 = 2x

The fraction increased from x to 2x. It became double of what it was. From x to 2x, the increase is x. Since x was the original number x is 100%.

The increase is 100%.

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Answer:

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Step-by-step explanation:

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