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Serggg [28]
2 years ago
12

A box contains 19 large marbles and 11 small marbles. Each marble is either green or white. 3 of the large marbles are green, an

d 4 of the small marbles are white. If a marble is randomly selected from the box, what is the probability that it is large or green
Mathematics
1 answer:
loris [4]2 years ago
8 0

Answer:

Step-by-step explanation:

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Evaluate the expression below when<br> X = 4 and y = (-3)<br> 4x + 2xy
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Step-by-step explanation:

4x + 2xy=

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Aisha has 8 coins worth 50¢. If the coins are all dimes and nickels, how many dimes and nickels does she have?
lianna [129]

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2 years ago
Someone please explain this question PART "b) i" ONLY!!!
Gnom [1K]
<h3>Answer:   (n-1)^2</h3>

This is because we have a list of perfect squares 0,1,4,9,...

We use n-1 in place of n because we're shifting things one spot to the left, since we start at 0 instead of 1.

In other words, if the answer was n^2, then the first term would be 1^2 = 1, the second term would be 2^2 = 4, and so on. But again, we started with 0^2 = 0, so that's why we need the n-1 shift.

You can confirm this is the case by plugging n = 1 into (n-1)^2 and you should find the result is 0^2 = 0. Similarly, if you tried n = 2, you should get 1^2 = 1, and so on. It appears you already wrote the answer when you wrote "Mark Scheme".

All of this only applies to sequence A.

side note: n is some positive whole number.

8 0
3 years ago
Can you help me with this like explain how and stuff, Please?
eduard

Answer:

Step-by-step explanation:I belive that the 7x+22 needs to equal 50 because they opposite angles. Hope this helped a little and can get you started

7 0
2 years ago
Read 2 more answers
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