Advertisements
Advertisements
प्रश्न
Evaluate:
`(3^-1÷4^-1)^2`
Advertisements
उत्तर
`(3^-1÷4^-1)^2`
=`(1/3÷1/4)^2`
=`(1/3xx4/1)^2=(4/3)^2`
=`16/9=1 7/9`
APPEARS IN
संबंधित प्रश्न
Express the following in exponential form:
a × a × a × c × c × c × c × d
Express the following number using exponential notation:
729
Identify the greater number, wherever possible, in the following?
53 or 35
Evaluate:
`(3^-1xx9^-1)÷3^-2`
Evaluate: 23 x 42
If 36 = 6 × 6 = 62, then `1/36` expressed as a power with the base 6 is ______.
Find the value of –(–4)4.
Express the following as a product of powers of their prime factors:
9000
Write the number of seconds in scientific notation.
| Sl. No. | Unit | Value in Seconds |
| 1. | 1 Minute | 60 |
| 2. | 1 Hour | 3,600 |
| 3. | 1 Day | 86,400 |
| 4. | 1 Month | 2,600,000 |
| 5. | 1 Year | 32,000,000 |
| 6. | 10 Years | 3,20,000,000 |
Bacteria can divide in every 20 minutes. So 1 bacterium can multiply to 2 in 20 minutes. 4 in 40 minutes, and so on. How many bacteria will there be in 6 hours? Write your answer using exponents, and then evaluate.
Most bacteria reproduce by a type of simple cell division known as binary fission. Each species reproduce best at a specific temperature and moisture level.
