In a lab quiz, there are 3 multiple-choice questions with 3 choices (a, b, c) for each question. Tim has not studied for the quiz at all and decides to randomly guess the answers. Also, all of the questions are independent such that getting one question right does not give you more information about another. What is the probability that he gets at most 2 questions right

19.side- angle- side

20. angle- side- angle

step-by-step explanation:

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )