Answer:
Why u Ask in SST
Explanation:
Anyway there are 118 atons in periodic table
they are the smallest indivisible unit in matter
they are made of proton, neutron and electron.
Answer:
The case studies
Explanation:
Case studies are a subset of a population that is sample in a research process.
The tendency of case studies being entirely true is dependent on certain factors in which on of them is using the right and dependable subset from a given population.
The overestimate on unemployment rate by Dr. Phong just by a careful research of only 3 cases will likely produce a wrong outcome.
Answer:
9 years
Explanation:
let my age be 'x' years
Therefore,
Age of sister = x - 4 years
Age of brother = x + 3 years
Product of ages = 1872
x(x - 4)(x + 3) = 1872
or
x³ - x² - 12x - 1872 = 0
on solving the above cubic equation, we get
x = 13 as the only real root of the equation
Hence,
Age of the sister = x - 4
= 13 - 4
= 9 years