Quiz about FIRST TERM QUIZ - REVIEW

Question 1

How do you write 7^-3 using positive exponents?

Accepted Answer

$$\frac{1}{7^3}$$

Answer

73

Answer

70

Answer

$$\frac{7^3}{1}$$

Question 2

Convert 0.252525... to a fraction.

Accepted Answer

25/99

Answer

25/9

Answer

25/100

Answer

1/4

Question 3

Between what two consecutive perfect squares does the number 61 lie?

Accepted Answer

49 and 64

Answer

50 and 100

Answer

60 and 62

Answer

1 and 100

Question 4

Which of the following is a repeating decimal?

Accepted Answer

7.1245454545454545454545454545...

Answer

8.125

Answer

12.55

Answer

2.451836248702165064513549452

Question 5

Which mixed fraction is equivalent to $$2.\overline{4}$$ ?

Accepted Answer

$$2\ \frac{4}{9}$$

Answer

$$2\ \frac{4}{99}$$

Answer

$$2\ \frac{2}{5}$$

Answer

$$2\ \frac{4}{10}$$

Question 6

Between what two perfect squares does $$\sqrt[]{21}$$ lie?

Accepted Answer

4 and 5

Answer

5 and 6

Answer

10 and 11

Answer

20 and 22

Question 7

What is a rational number ?

Accepted Answer

A rational number is a number that can be written as a fraction.

Answer

A rational number is a number that cannot be written as a fraction.

Answer

A rational number cannot be a repeating decimal.

Answer

None of the above.

Question 8

Which order of number below is arranged from least to greatest?

$$-64,\ \ 3.5,\ \ \sqrt[]{27},\ \ 6.\overline{6}$$

Accepted Answer

$$-64,\ 3.5,\ \sqrt[]{27},\ 6.\overline{6}$$

Answer

$$6.\overline{6},\ \ \sqrt[]{27},\ -64,\ \ 3.5$$

Answer

$$3.5,\ -64,\ \sqrt[]{27},\ 6.\overline{6}$$

Answer

$$3.5,\ \sqrt[]{27},\ 6.\overline{6},\ -64$$

Question 9

Irrational numbers can be written as terminating decimals.

Accepted Answer

False

Answer

True

Question 10

The volume of a cube is 1,000 cm³. What is the length of each side of the cube?

Accepted Answer

10

Answer

1

Answer

100

Answer

300

Question 11

What is the area of a square with a side of 12?

Accepted Answer

144

Answer

6

Answer

24

Answer

48

Question 12

Which set of numbers are perfect squares?

Accepted Answer

9, 81, 100

Answer

-144, 9, 50, 75, 81, 100

Answer

9, 50, 75, 81, 100

Answer

9, 50, 81, 100

Question 13

What is the value of x in x² = 45?

Accepted Answer

$$\pm\sqrt[]{45}$$

Answer

$$\sqrt[]{45}$$

Answer

$$-\sqrt[]{45}$$

Answer

45

Question 14

Which point most closely corresponds to $$\sqrt[3]{8}$$ on the number line below?

Accepted Answer

P

Answer

Q

Answer

R

Answer

S

Question 15

To find the square root of a number, you must divide it by 2.

Accepted Answer

False

Answer

True

Question 16

What is $$3^{6^{ }}\cdot5^6$$ ?

Accepted Answer

156

Answer

1512

Answer

1536

Answer

1

Question 17

Simplify (-3)^-4.

Accepted Answer

$$\frac{1}{81}$$

Answer

$$81$$

Answer

$$-81$$

Answer

$$-\frac{1}{81}$$

Question 18

What exponential expression is equivalent to $$5^6\ \cdot\ 5^9$$ ?

Accepted Answer

515

Answer

5

Answer

554

Answer

2515

Question 19

Kim says that an equivalent expression for 3³ x 4³is 12⁹. Is he correct?

Accepted Answer

No

Answer

Yes

Question 20

According to exponent rules, when we multiply exponential expressions we _______ the exponents.

Accepted Answer

add

Answer

subtract

Answer

multiply

Answer

double

Question 21

Simplify the expression $$\frac{7^6}{7}$$ .

Accepted Answer

75

Answer

76

Answer

7-5

Answer

$$\frac{1}{7^5}$$

Question 22

Which of the following is not equal to 2¹⁸ ?

Accepted Answer

$$\left(2^{18}\right)^0$$

Answer

$$\frac{2^{20}}{2^2}$$

Answer

2¹⁴ x 2⁴

Answer

$$\left(2^9\right)^2$$

Question 23

What is the area (A) of a rectangle board if the length measures 5⁹ and the width measures 5⁵?

Accepted Answer

A = 514

Answer

A = 54

Answer

A = 5⁴⁵

Answer

A = 10²⁸

Question 24

What is $$\left(25^0\right)^2$$ ?

Accepted Answer

1

Answer

2

Answer

25

Answer

1/25

Question 25

What is the estimate of 0.00000000125 using a power of 10?

Accepted Answer

1.25 X 10^-9

Answer

125 X 10¹¹

Answer

125 X 10^-11

Answer

1.25 X 10⁹

Question 26

What is 8 x 10⁴ if written in standard form?

Accepted Answer

80,000

Answer

800,000

Answer

8,000

Answer

800

Question 27

What is 12 065 when written in scientific notation?

Accepted Answer

1.2065 x 10⁴

Answer

12, 065 x 10

Answer

12.065 x 10³

Answer

120.65 x 10²

Question 28

What is the equivalent of 3.208 x 10^-4 in standard form?

Accepted Answer

0.0003208

Answer

3208

Answer

0.003208

Answer

32.08 x 10^-6

Question 29

Which of these are NOT in scientific notation?

Accepted Answer

10 x 102

Answer

1.2 x 103

Answer

2.0 x 102

Answer

5.3 x 10⁹

Question 30

What is (7.3 x 10⁵) + (3.7 x 10⁵) ?

Accepted Answer

1.1 x 10 ⁶

Answer

1.1 x 10⁵

Answer

1.1 x 10¹⁰

Answer

1.10 x 10¹¹

Question 31

What is $$\left(7\ imes10^5 ight)-\left(5.2 imes10^4 ight)$$ ?

Accepted Answer

$$6.48 imes10^5$$

Answer

$$1.8 imes10^5$$

Answer

$$1.8 imes10^4$$

Answer

$$6.48 imes10^4$$

Question 32

What is (3.4 x 10⁵)(1.2 x 10^-3)?

Accepted Answer

4.08 x 10²

Answer

4.8 x 102

Answer

4.08 x 10^-8

Answer

4.08 x 10^-15

Question 33

A rectangular section of land made up of wheat farms has a length of 5 x 10⁴ meters and a width of 6 x 10³ meters What is the area of the land in square meters?

Accepted Answer

3 x 10⁸ m²

Answer

3 x 10⁶ m²

Answer

3 x 10⁷ m²

Answer

3 x 10¹² m²

Question 34

The mean distance from the sun to Earth is 9.29 x 10⁷miles. Jupiter's mean distance from the sun is 4.8388 x 10⁸miles. What is the difference between these two distances in miles?

Accepted Answer

3.9098 x 10⁸

Answer

3.9098 x 10⁷

Answer

4.3092 x 10¹

Answer

5.7678 x 10⁸

Question 35

What is $$\frac{1.91 imes10^3}{5 imes10^{-4}}$$ ?

Accepted Answer

3.82 x 10⁶

Answer

9.55 x 10⁷

Answer

6.91 x 10⁶

Answer

3.82 x 10⁷

Question 36

A factory can make 3 x 10⁴ t-shirts per day, how many t-shirts will it make in 2.5 x 10² days?

Accepted Answer

7.5 x 10⁶

Answer

6.5 x 10⁶

Answer

7.5 x 102

Answer

7.5 x 10⁸

Question 37

The Earth has a mass of about 1 x 10²⁵ kg. Neptune has a mass of 1.8 x 10²⁷ kg. How many times larger is Neptune than Earth? Give your answer in standard form.

Accepted Answer

180

Answer

1,800

Answer

18

Answer

1.8

Question 38

The Lounge Rest has about 210,000 managers and each makes on average 39,000 dollars per year. How much money does The Lounge Rest spend on managers each year?

Accepted Answer

8.19 x 10⁹

Answer

0.819 x 10⁹

Answer

81.9 x 10¹

Answer

8.19 x 10²⁰

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