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Troyanec [42]
3 years ago
5

20 POINTS PLEASE HELP ASAP!!!

Mathematics
1 answer:
Alika [10]3 years ago
8 0

Answer: :(

Step-by-step explanation: you said 20

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Write 102,800,000 in scientific notation
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1.028 × 10^8

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If y is proportional to x and y = -15 when x = -20, what is the value of x when y = 12?
alexandr402 [8]
Maybe i have that you wanted We can represent the situation like that: Y=-15 and x=-20 Then When y=12 x=? We make x(The unknown) *-15=12*(-20) We have an simple équation to solve Thus x=(12*(-20))/-15 X=16
7 0
3 years ago
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A store can buy a monitor for $150.
Dominik [7]

Answer:

$375

Step-by-step explanation:

Step 1: Set up expression

150(1 + 150%)

Step 2: Convert %

150(1 + 1.5)

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7 0
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
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