Answer:
Determine the response factor ( F ) = 0.146
Step-by-step explanation:
Recalling from Response factor;
- where Ax = peak area of analyzed (DDT) = 3713
- As = peak area of standard = 10899
- Cx = concentration of analyzed = 6.58 mg/L
- Cs = concentration of standard chloroform = 2.82 mg/L
- From the equation; F = Ax/As x Cs/Cx
Answer:
64.62
Step-by-step explanation:
8 3/7 times 7 2/3 is 64.62 (rounded up)
If the rate continues, in nine years there will be about 300 employees
Answer:
24750
Step-by-step explanation:
Given that 6 freshmen, 5 sophomores, 6 juniors, and 5 seniors are eligible to be on a committee
16 students be chosen if it is to consist of exactly 4 juniors and exactly 3 seniors, and the rest must be freshmen or sophomores
i.e. dance committee will have 16 students out of which
4 juniors 3 seniors 8 freshmen or sophomores from
6 juniors, 5 seniors and 5 sophomores and 6 freshmen
Junior can be selected in 6C4 = 15 ways
Seniors in 5C3 = 10 ways
Freshman or sophomores in 11C8 = 165
The total no of ways = product of these three
= 
I say B but if it's wrong I'm so sorry