Answer:
The probability of no correct answers is 0.125 = 12.5%.
Step-by-step explanation:
For each question, there are only two possible outcomes. Either it is answered correctly, or it is not. The probability of a question being answered correctly is independent of any other question, which means that we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which 
is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
3 trials, each with probability of success (correct) given by p=0.50.
This means that 
The probability of no correct answers is
This is P(X = 0).
The probability of no correct answers is 0.125 = 12.5%.
Answer:
1) 2x+1 = 2x-4
2) 6x+2=3(2x+1)
3) -4x -5=-2(2x)+2
Step-by-step explanation:
We need to give three examples of equations where there would be no solution.
First we will define equation with no solution.
<em>If solving an equation you get the result as 3=5 but 3 is not equal to 5, so the equation has no solution.</em>
Examples of equations where there would be no solution
1) 2x+1 = 2x-4
2x-2x=-4-1
0=-1 ( false)
So, the equation has no solution.
2) 6x+2=3(2x+1)
6x+2=6x+1
6x-6x=1-2
0=-2 (false)
So, the equation has no solution.
3) -4x -5=-2(2x)+2
-4x-5=-4x+2
-4x+4x=2+5
0=7 (false)
So, the equation has no solution.
Answer:
67%
Step-by-step explanation:
24/75%= 33
100-33= 67
Answer: 12/13 or -12/13
Step-by-step explanation: x^2=144/169
Sqrt(x^2)=sqrt(144/169)
take the square root of the top and bottom
x=12/13 or -12/13
Range is the difference between the highest & lowest number. to find the range of these numbers, you need to subtract the lowest, 48, from 82, the highest.
your answer is a, 34.
