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Triss [41]
3 years ago
15

Can you simplify -3(x - 2y)

Mathematics
1 answer:
finlep [7]3 years ago
3 0
Yes.

−<span>3<span>(<span>x−<span>2y</span></span>) = </span></span><span>(<span>−3</span>)</span><span>(<span>x+<span>−<span>2y</span></span></span><span>)
</span></span>
And then...

(−3)(x+−2y) = <span><span>(<span>−3</span>)</span><span>(x)</span></span>+<span><span>(<span>−3</span>)</span><span>(<span>−<span>2y</span></span><span>)
</span></span></span>
which equates to <span>−<span>3x</span></span>+<span>6<span>y

The answer of which you're looking for is </span></span><span>−<span>3x</span></span>+<span>6<span>y.</span></span>
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3 years ago
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6 0
4 years ago
Can someone help me with this
Thepotemich [5.8K]

Answer:

D: 1/35

Step-by-step explanation:

First, you have to know how many marbles there are, and if you count them all up there are 15 marbles in total. Next, there are 3 blue marbles, so you would put the fraction as 3/15, or simplified to 1/5. Now, if you don't replace that blue marble, you now only have 14 marbles, and there are 2 yellow, which means you have a 2/14 chance of drawing a yellow marble, simplified to 1/7. But because there are two parts of the problem you are going to multiply 1/5 by 1/7 to get 1/35, which is your answer.

7 0
3 years ago
Read 2 more answers
Find S5 for the sequence 3, 13, 23, 33, 43, 53, 63, 73.
hoa [83]
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before we find s5, we r going to find a5...because we need a5 to use in the sum formula.....a5 is the fifth term, and it is 43

sn = (n (a1 + a5) / 2
s5 = (5 (3 + 43) / 2
s5 = (5 (46)) / 2
s5 = 230/2
s5 = 115 <===

or, for this particular problem, s5 is the sum of the first 5 terms.
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4 years ago
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Fittoniya [83]

2.) No correlation

3.) Negative correlation

Step-by-step explanation:

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