In a task, you can choose between two exclusive alternatives A or B, where the first alternative A can be completed in m ways and the second alternative B can be completed in n ways. Then in how many different ways can this task be completed?

The total number of ways to complete the task is (m + n) ways.

Step-by-step explanation:

Exclusive alternatives A or B implies that only one of the two can be fulfilled.

That is, either alternative A or B can be carried out, not both.

n (A and B) = 0

The number of ways of doing the task if alternative A is selected is m ways.

The number of ways of doing the task if alternative B is selected is n ways.

As the alternatives A and B are exclusive the number of ways to complete the task is:

Number of ways to complete the task = n (A) + n (B) - n (A and B)

                                                               = m + n - 0

                                                               = m + n

Thus, the total number of ways to complete the task is (m + n) ways.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

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 : )