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
6 answers
6. C
9. A
15. D