No it is not hope this helps
Kanisha: reporter
Howard: recorder
Bill: time keeper
Jacqueline: material manager
Answer:
The answer would be 8.
Step-by-step explanation:
This is a percentage question, and I have struggled with these before but this is the <em>easiest</em> way to solve it given these certain criteria.
Alright, so it's given that:
A) 90%= an A grade
and
B) This is an 80-question test.
Given these, we can do the following:
90% times 80, which equals <em>72</em>.
Just to check, we know that to convert percentages to fractions, we move the decimal two spots to the left, therefore 90%= 0.90, or 0.9. We take 72 and divide it by 80, and we get 0.9, thus showing that it is correct.
Then, we do 80-72 and using simple math we get 8.
Answer:
Given:
The pH of solution A = 2.4
The pH of solution B = 9.4.
Solution:
The hydrogen ion concentration is the amount of hydrogen ions present in the given solution usually expressed in terms of moles pere litre .
(A) hydrogen-ion concentrations of the solution.
Now,
The hydrogen ion concentration of the solution A
Similarly
hydrogen ion concentration of the solution B
(b) The hydrogen ion concentration of solution A 
is and the solution B is 
so we can conclude that the hydrogen ion concentration of solution A is 
times greater than solution B
(c) The solutions A and Solution B differ by 7 order of magnitude
The answer would be x^3 + x^2 - x - 1
