Advertisements
Advertisements
प्रश्न
For hook-up, determine whether there is a single repeater machine that will do the same work. If so, describe or draw it.

Advertisements
उत्तर
Using law of exponents,
am × an = (a)m + n ...[∵ a is non-zero integer]
Hook-up machine can do the work = 73 × 72 = 75
So, (x 75) single machine can do the same work.
Diagram of single × 75 machine.

APPEARS IN
संबंधित प्रश्न
If x be any non-zero integer and m, n be negative integers, then xm × xn is equal to ______.
Cube of `-1/2` is ______.
By multiplying (10)5 by (10)–10 we get ______.
(–2)0 = 2
(–7)–4 × (–7)2 = (–7)–2
Simplify:
`(1/4)^-2 + (1/2)^-2 + (1/3)^-2`
Find the value of n.
`6^n/6^-2 = 6^3`
Consider a quantity of a radioactive substance. The fraction of this quantity that remains after t half-lives can be found by using the expression 3–t. What fraction of substance remains after 7 half-lives?
Find a single repeater machine that will do the same work as hook-up.

The diameter of the Sun is 1.4 × 109 m and the diameter of the Earth is 1.2756 × 107 m. Compare their diameters by division.
