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allochka39001 [22]
3 years ago
10

A)clara believes the sequence 3,9,27,81,243 is arithmetic. Do you agree with clara?Explain your reasoning.

Mathematics
1 answer:
allsm [11]3 years ago
3 0
This is NOT an arithmetic sequence because there is no common difference.  It is a geometric sequence because there is a common ratio.  Meaning that each term is a constant ratio or multiple of the previous term.  The recursive rule for this geometric sequence is:

a(n)=3*a(n-1), a(1)=3



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you put the number you have to multiply the decimal with to get a whole n.o as the decimal

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H(x)=1/8x^3-x^2<br><br> Over which interval does h have a positive average rate of change?
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(-\infty,0)\cup(\frac{16}{3},\infty)\\That \ is x\frac{16}{3}

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For positive rate of change h'(x)>0

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4 years ago
Twenty-five cards are numbered from 1 to 25 and placed in a box. One card is selected at random and not replaced. Another card i
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Answer:

11/50

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Favourable outcome / Total number of possibilities = 11/24

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6 0
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9. Peter is trying to buy fencing for the perimeter of his garden. His garden is in the shape of a rectangle with a length of 2(
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Length: 2(x + 6); Width: 3.5x

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The perimeter is the sum of the measures of all 4 sides.

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perimeter = 2(x + 6) + 2(x + 6) + 3.5x + 3.5x

Use the distributive property on 2(x + 6).

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Now let's group all terms with x first, then all the numbers.

perimeter = 2x + 2x + 3.5x + 3.5x + 12 + 12

Now we add like terms. Like terms have exactly the same variables and the same exponents. All terms with x are like terms and can be added together. All terms with no variable are like terms and can be added together.

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Answer: 11x + 24

8 0
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