Advertisements
Advertisements
प्रश्न
Use the properties of exponents to verify that statement is true.
25(5n – 2) = 5n
Advertisements
उत्तर
LHS = 25(5n – 2)
= 52(5n ÷ 52)
= `5^2 xx 5^n xx 1/5^2`
= 5n
= RHS
APPEARS IN
संबंधित प्रश्न
`((-7)/5)^-1` is equal to ______.
50 = 5
The cells of a bacteria double in every 30 minutes. A scientist begins with a single cell. How many cells will be there after 24 hours?
An electron’s mass is approximately 9.1093826 × 10–31 kilograms. What is this mass in grams?
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.

By what number should (–8)–3 be multiplied so that the product may be equal to (–6)–3?
Find x.
`(- 1/7)^-5 ÷ (- 1/7)^-7 = (-7)^x`
Find x.
2x + 2x + 2x = 192
Find x.
`((-6)/7)^(x - 7) = 1`
