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svet-max [94.6K]
2 years ago
7

Graph f(x) = (x+1) (x-5)

Mathematics
1 answer:
Bond [772]2 years ago
4 0

Answer:

Parabola pointing up.  Vertex is at (-2,9) and passing through the x-axis at (-1,0) and (5,0)

Step-by-step explanation:

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What is the next number in the sequence: 3, 8, 12, 48, 29, __
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Answer:

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3 years ago
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Show that 1n^ 3 + 2n + 3n ^2 is divisible by 2 and 3 for all positive integers n.
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Prove:

Using mathemetical induction:

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Now, for n=k, n > 0

P(k) = k^{3}+2k+3k^{2}

Assuming P(k) is divisible by 2 and 3:

Now, for n=k+1:

P(k+1) = (k+1)^{3}+2(k+1)+3(k+1)^{2}

P(k+1) = k^{3}+3k^{2}+3k+1+2k+2+3k^{2}+6k+3

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Since, we assumed that P(k) is divisible by 2 and 3, therefore, P(k+1) is also

divisible by 2 and 3.

Hence, by mathematical induction, P(n) = n^{3}+2n+3n^{2} is divisible by 2 and 3 for all positive integer n.

3 0
3 years ago
A sign says that the price mark on all equipment is 30% off the original price. you buy electric guitar for the sale price for 3
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I think that the answer would be 2 if I am right 
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Add what they ate
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3 years ago
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