Math

4. Which explains why the sequence 81, 3, 1/9,... is arithmetic or geometric?
A)The sequence is arithmetic because it decreases by a factor of 1/27
B)The sequence is geometric because it decreases by a factor of 1/27
C)The sequence is arithmetic because it decreases by a factor of 3.
D)The sequence is geometric because it decreases by the factor of 3.

6. Write an expression to describe a rule for the sequence. Then find the 100th term in the sequence.
3, 10, 17, 24, 31, 38,...
A)n + 7;707
B)7n; 700
C)7n-4; 696
D)6n-4; 596

9.The time between a lightning flash and the following thunderclap may be used to estimate, in kilometers, how far away a storm is. How far away is a storm if 12 seconds elapse between the lightning and the thunderclap?
Use the formula d=t/3, where t is the time, in seconds, between the flash and the thunderclap.
A)4 kilometers
B)5 kilometers
C)15 kilometers
D)36 kilometers

10. X Y Write a rule for the
0 9 function represented
1 28 by the table.
2 47
3 66
A) y=9+19x
B) y=18+10x
C) y=19+9x
D) y=10+18x

15. Bill takes a loan of $9,000.00 at a 8% simple interest rate for 6 years.
a. How much interest will he pay in total for the loan?
b. How much interest will he pay in total for the loan?
A)$720.00;$3,600.00
B)$1,408.00;$4,224.00
C)$36,000.00;$12,000.00
D)$1,440.00;$4,320.00

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  1. Jeff, please post whatever you DO know about these questions, and then be patient until one of our real math tutors can help. You MUST, however, indicate what you think about each one so a real tutor will know where you get stuck.

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    Writeacher
  2. I don't know very much. Math is not my forte. I am like a third grader when it comes to math.

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  3. i need the answer to the first one, i believe it's D but i dunno .

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  4. I need help!!! I have these on my test and my teacher will only go over the questions a few weeks from when I am done with the test:(. Please help!!!

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  5. 4. B
    6. C
    9. A
    15. D

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  6. thanks I guess for part of the answers...

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