Answer:
The correct option is;
pH = 4.1
Step-by-step explanation:
The given information are;
The hydrogen ion [H⁺] concentration in tomato juice =
The pH of a solution = -㏒{H⁺] = -㏒( ) = -(-4.1) × ㏒(10) = 4.1
The pH of the of the tomato juice = 4.1
The pH is the term used to refer to the acidity of water with the range of pH values ranging from 0 to 14 where pH values of a solution lesser than 7 are considered acidic while pH values above 7 indicate a basic solution.
Answer: 0.9617
Step-by-step explanation:
Given : The proportion of adults use their phones in meetings or classes : p=0.57
Number of adults randomly selected : n= 9
Let x be the random variable that represents the number of adults use their phones in meetings or classes.
By using binomial probability formula, to find the probability of getting success in x trials.
The probability that at least 3 of them use their smartphones in meetings or classes will be :-
Hence, the required probability is 0.9617 .
Answer:
x<-3
The graph in the attached figure
Step-by-step explanation:
<u><em>The correct question is</em></u>
Solve the inequality. Graph the solution.
x+5<2
we have
Solve for x
Subtract 5 both sides
The solution is the interval (-∞,-3)
All real numbers less than -3
In a number line, the solution is the shaded area at left of x=-3 (open circle)
The number x=-3 is not included in the solution
The graph in the attached figure
