When testing for current in a cable with eleven color-coded wires, the author used a meter to test four wires at a time. How many different tests are required for every possible pairing of four wires? The number of tests required is nothing.

The number of tests required is 330.

Step-by-step explanation:

We have to find the total number of combinations of four wires.

Combinations formula:

is the number of different combinations of x objects from a set of n elements, given by the following formula.

In this question:

Four wires from a set of 11.

So

The number of tests required is 330.

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 : )

12cm

the answer is d