Free Printable PRE-TEST_QUARTER 1 WEEK 3

1.

What expression is same as (𝑎∙𝑎∙𝑎∙𝑎)(𝑏∙𝑏)?

a)

$\left(4a\right)\left(2b\right)$

b)

$a^2b^2$

c)

$a^4b^2$

d)

$8ab$

2.

What is the common ratio of the sequence 36, 12, 4, …?

a)

$3$

b)

$-3$

c)

$\frac{1}{3}$

d)

$-\frac{1}{3}$

3.

The first term of a geometric sequence is 5, and the second term is 10, what is the sixth term?

a)

160

b)

80

c)

320

d)

640

4.

The common ratio of a geometric sequence is $\frac{1}{2}$ , and the fourth term is $\frac{1}{4}$ . What is the third term of the sequence?

a)

$1$

b)

$\frac{1}{2}$

c)

$\frac{1}{4}$

d)

$\frac{1}{8}$

5.

The common ratio of a geometric sequence is $\frac{3}{2}$ . Find the first three terms if the fifth term is 1.

a)

$\frac{16}{81},\ \frac{8}{27},\ \frac{4}{9}$

b)

$\frac{8}{27},\ \frac{4}{9},\ \frac{2}{3}$

c)

$\frac{32}{243},\ \frac{16}{81},\ \frac{8}{27}$

d)

$2,\ 1,\ \frac{1}{2}$

6.

Find the specified term of the geometric sequence 3, 6, 12,... $a_7$ .

a)

$192$

b)

$\frac{5}{16}$

c)

$6561$

d)

$-\frac{1}{256}$

7.

Find $a_6$ of the geometric sequence $10,\ 5,\ \frac{5}{2},...$ .

a)

$192$

b)

$\frac{5}{16}$

c)

$6561$

d)

$-\frac{1}{256}$

8.

Find $a_9$ of the geometric sequence $1,\ 3,\ 9,\ ...$ .

a)

$192$

b)

$\frac{5}{16}$

c)

$6561$

d)

$-\frac{1}{256}$

9.

Find the specified term of the geometric sequence $2,\ -1,\ \frac{1}{2},...a_{10}$ .

a)

$192$

b)

$\frac{5}{16}$

c)

$6561$

d)

$-\frac{1}{256}$

10.

Find the specified term of the geometric sequence $100,\ 20,\ 4,...a_8$ .

a)

$\frac{4}{3125}$

b)

$\frac{5}{16}$

c)

$6561$

d)

$-\frac{1}{256}$

11.

What is the geometric mean of the sequence 3, _____, 8 ?

a)

$2\sqrt{6}$

b)

$\frac{3}{4}$

c)

$14,\ 28$

d)

$9,\ \frac{9}{4},\ \frac{9}{16}$

e)

$-3\ ;-27$

12.

What is the geometric mean of the sequence 3/2, _____, 3/8 ?

a)

$2\sqrt{6}$

b)

$\frac{3}{4}$

c)

$14,\ 28$

d)

$9,\ \frac{9}{4},\ \frac{9}{16}$

e)

$-3\ ;-27$

13.

What is the geometric mean of the sequence 7, _____,______, 56 ?

a)

$2\sqrt{6}$

b)

$\frac{3}{4}$

c)

$14,\ 28$

d)

$9,\ \frac{9}{4},\ \frac{9}{16}$

e)

$-3\ ;-27$

14.

What is the geometric mean of the sequence 36, _____,______,________, 9/64 ?

a)

$2\sqrt{6}$

b)

$\frac{3}{4}$

c)

$14,\ 28$

d)

$9,\ \frac{9}{4},\ \frac{9}{16}$

e)

$-3\ ;-27$

15.

What is the geometric mean of the sequence -1, _____, -9, _____, -81?

a)

$2\sqrt{6}$

b)

$\frac{3}{4}$

c)

$14,\ 28$

d)

$9,\ \frac{9}{4},\ \frac{9}{16}$

e)

$-3\ ;-27$

PRE-TEST_QUARTER 1 WEEK 3

Total questions: 15

Worksheet time: 12mins

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