Default Title

Question (11)

QN0029303

Simplify 10⁻³ × 10⁷.

(A) 10⁴
(B) 10⁻⁴
(C) 10¹⁰
(D) 10³

Correct Answer: A

Explanation:

Add the exponents: –3 + 7 = 4.

Link:

Report Error

Question (12)

QN0029304

What is the value of 5⁰?

(A) 0
(B) 1
(C) 5
(D) Not defined

Correct Answer: B

Explanation:

Any non-zero number raised to the power 0 equals 1.

Link:

Report Error

Question (13)

QN0029305

Which of the following is equal to 2⁻⁴?

(A) 16
(B) 1/4
(C) 1/16
(D) –16

Correct Answer: C

Explanation:

2⁻⁴ = 1/2⁴ = 1/16.

Link:

Report Error

Question (14)

QN0029306

Which number is written correctly in scientific notation?

(A) 45.6 × 10³
(B) 0.56 × 10⁵
(C) 4.56 × 10⁴
(D) 56 × 10²

Correct Answer: C

Explanation:

In scientific notation, the coefficient must be at least 1 but less than 10.

Link:

Report Error

Question (15)

QN0029307

Write 7,20,000 in scientific notation.

(A) 72 × 10⁴
(B) 7.2 × 10⁵
(C) 0.72 × 10⁶
(D) 720 × 10³

Correct Answer: B

Explanation:

7,20,000 = 7.2 × 10⁵.

Link:

Report Error

Question (16)

QN0029308

A school uses a 6-digit numerical security code. Each digit can be any number from 0 to 9. How many different codes are possible?

(A) 10⁵
(B) 10⁶
(C) 6¹⁰
(D) 10⁷

Correct Answer: B

Explanation:

Total codes = 10 × 10 × 10 × 10 × 10 × 10 = 10⁶.

Link:

Report Error

Question (17)

QN0029309

Which type of growth occurs when a quantity doubles after equal intervals of time?

(A) Linear growth
(B) Exponential growth
(C) Uniform growth
(D) Arithmetic growth

Correct Answer: B

Explanation:

Doubling repeatedly represents exponential growth.

Link:

Report Error

Question (18)

QN0029310

Which statement about linear growth is correct?

(A) The quantity is multiplied by a fixed factor each time.
(B) The quantity increases by a fixed amount each time.
(C) The quantity always doubles.
(D) The quantity always triples.

Correct Answer: B

Explanation:

Linear growth means adding a fixed amount at each step.

Link:

Report Error

Question (19)

QN0029311

Simplify 8⁹ ÷ 8⁴.

(A) 8¹³
(B) 8⁵
(C) 8⁻⁵
(D) 64⁵

Correct Answer: B

Explanation:

Subtract the exponents: 9 – 4 = 5.

Link:

Report Error

Question (20)

QN0029312

Which of the following correctly represents the number 308100000 in scientific notation?

(A) 30.81 × 10⁷
(B) 3.081 × 10⁸
(C) 308.1 × 10⁶
(D) 0.3081 × 10⁹

Correct Answer: B

Explanation:

Move the decimal point so the coefficient lies between 1 and 10: 308100000 = 3.081 × 10⁸.

Link:

Report Error

Question (11)

Simplify 10⁻³ × 10⁷.

Explanation:

Link:

Question (12)

What is the value of 5⁰?

Explanation:

Link:

Question (13)

Which of the following is equal to 2⁻⁴?

Explanation:

Link:

Question (14)

Which number is written correctly in scientific notation?

Explanation:

Link:

Question (15)

Write 7,20,000 in scientific notation.

Explanation:

Link:

Question (16)

A school uses a 6-digit numerical security code. Each digit can be any number from 0 to 9. How many different codes are possible?

Explanation:

Link:

Question (17)

Which type of growth occurs when a quantity doubles after equal intervals of time?

Explanation:

Link:

Question (18)

Which statement about linear growth is correct?

Explanation:

Link:

Question (19)

Simplify 8⁹ ÷ 8⁴.

Explanation:

Link:

Question (20)

Which of the following correctly represents the number 308100000 in scientific notation?

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY