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Scrat [10]
2 years ago
7

19 - 6(-k + 4) as an equivalent expression

Mathematics
2 answers:
DaniilM [7]2 years ago
7 0

Answer:

19 - 6(-k + 4)

Opening bracket

= 19 + 6k - 24

= 6k - 5

Step-by-step explanation:

Lunna [17]2 years ago
3 0

Answer:

-5 + 6k

Step-by-step explanation:

Expand the bracket

19 - (6 * -k) - (6 * 4)

19 - (-6k) - 24

-5 + 6k

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s2008m [1.1K]

Answer:

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3 years ago
Give a big-o estimate for the number of operations (where an operation is an addition or a multiplication) used in this segment
Marianna [84]
We have a "rectangular" double loop, meaning that both loops go to completion.
So there are 3*4=12 executions of t:=t+ij.

Assuming two operatiions per execution of the innermost loop, (i.e. ignoring the implied additions in increment of subscripts), we have 12*2=24 operations in all.

Here the number of operations (+ or *) is exactly known (=24). 

Big-O estimates are used for cases with a varying scale of operations, governed by a variable (usually n) to indicate the sensitivity of the number of operations relative to a change in the size of n.

Here we do not have a scale, nor n is defined.  The number of operations is constant and known at 24.   So a variable is required to find the big-O estimate.
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3 years ago
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Aleonysh [2.5K]

Answer:

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Step-by-step explanation:

3 0
3 years ago
In ΔVWX, w = 520 cm, ∠W=93° and ∠X=68°. Find the length of x, to the nearest centimeter.
Pani-rosa [81]

Answer:

482.7972612 cm. Just round from here.

Step-by-step explanation:

Ah, the sine law questions. Ok so you know \frac{sin(A)}{a} = \frac{sin(B)}{b} = \frac{sin(C)}{c}. If you don't, voila. Obviously, the variables are different but we can use the same formula. So, we have

\frac{sin(X)}{x}  = \frac{sin(W)}{w}

Plug in:

\frac{sin(68)}{x} = \frac{sin(93)}{520}

The answer when solving for x is the above

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3 years ago
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vovikov84 [41]
To find the volume of each prism, you will multiply the length by the width by the height.

V = lwh
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V = lwh
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Both boxes are similar in that they can be described as a rectangular prism.

They are different because one prism has congruent edges, so we call it a cube. The other one has varying side lengths, therefore it is only a rectangular prism.

3 0
3 years ago
Read 2 more answers
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