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Which of the following numbers are geometric means between a1=10a_1=10a1=10 and a9=2560a_9=2560a9=2560 where r=2r=2r=2 .
40
100
160
640
40, 160, 640
Identify the common difference of a geometric sequence given that a1=−2a_1=-2a1=−2 and a6=64.a_6=64.a6=64.
-2
-1
0
2
Which of the following numbers are geometric means between a1=3a_1=3a1=3 and a5=243a_5=243a5=243 where r=3r=3r=3 .
5
9
10
15
Which of the following numbers are geometric means between a1=4a_1=4a1=4 and a6=18a_6=\frac{1}{8}a6=81 where d=12d=\frac{1}{2}d=21 .
14\frac{1}{4}41
12\frac{1}{2}21
1
14, 12, 1\frac{1}{4},\ \frac{1}{2},\ 141, 21, 1
Which of the following numbers are geometric means between a1=5a_1=5a1=5 and a5=1125a_5=\frac{1}{125}a5=1251 where r=15r=\frac{1}{5}r=51 .
15\frac{1}{5}51
25
125
1 and 15\frac{1}{5}51
Identify the common difference of a geometric sequence given that a1=4a_1=4a1=4 and a6=18.a_6=\frac{1}{8}.a6=81.
−12-\frac{1}{2}−21
Identify the common ratio of a geometric sequence given that a1=10a_1=10a1=10 and a9=2560.a_9=2560.a9=2560.
3
4
Which of the following numbers are geometric means between a1=−2a_1=-2a1=−2 and a6=64a_6=64a6=64 where r=−2r=-2r=−2
8
16
32
4 and 16
Identify the common difference of an arithmetic sequence given that a1=5a_1=5a1=5 and a5=1125a_5=\frac{1}{125}a5=1251 .
-5
−15-\frac{1}{5}−51
Identify the common ratio of a geometric sequence given that a1=3a_1=3a1=3 and a5=243.a_5=243.a5=243.
It is done.