Base, Exponent and Power

Q.

Express the size of a plant cell in exponent form if its value is 0.00001275 m.

Q.

Express 216 in exponential form

1. $2^2\times 3^3$

2. $2^2\times 3^2$

3. $2^3\times 3^2$

4. $2^3\times 3^3$

Q. If $x=2$ and $y=3$, what is the value of $x^x+y^y$ ?

1. 31
2. 17
3. 13
4. 56

Q.

Identify the base in the given example: $5^3$
Base: ___

Q.

Express 5000 in exponential form.

1. $2^2\times 5^5$

2. $2^3\times 5^2$

3. $2^2\times 5^3$

4. $2^3\times 5^4$

Q.

Find the value of a + b if $2^a+5^b=141$.

1. 6

2. 7

3. 9

4. 8

Q.

Question 89

In the following question, state whether the given statements are true (T) or false (F).

Large numbers can be expressed in the standard form by using positive exponents.

Q. $2^5\times 3^4$ =

1. 2674
2. 2592
3. 2400
4. 2544

Q.

Write the given below expression using brackets.

Fifteen multiplied by the sum of three and four.

Q. If we represent 343 in exponential form , then the base is and the exponent is .

1. 7
2. 3
3. 9
4. 19

Q. The multiplicative inverse of $2^2$ is

1. $\frac{1}{4}$
2. $\frac{2}{10}$
3. $\frac{1}{16}$
4. $\frac{1}{2}$

Q.

The exponent of $c$ after simplifying $(3ab{)}^2$$(-5a^{2}b{c}^4{)}^2$ is

___

Q. 2 multiplied by itself ten times, when written in the exponential form is .

1. $2\times 10$
2. $2\times 2^8$
3. $2^{10}$
4. $2^{-10}$

Q.

Express 3375 in exponential form.

1. $3^3\times 5^3$

2. $3^2\times 5^2$

3. $3^2\times 5^3$

4. $3^3\times 5^2$

Q. In 2n, n is known as a/an .

1. base
2. exponent
3. constant
4. alphabet

Q.

If 3 is multiplied 'a' times with itself and equals 81, then a = __

1. 4

2. 3

3. 2

4. 1

Q. The value of $2^8$ is .

1. 128
2. 256
3. 512
4. 64

Q. Which of the following numbers can be written in the form $2^n$, where $n$ is a natural number?

1. 40
2. 64
3. 120
4. 256
5. 8
6. 20
7. 32
8. 84
9. 24
10. 512