Mateo is studying a human hair with a diameter of 6.5 x 10^-4 inches and a horse hair with a diameter of 1.3 x 10^-3 inches. which statement is true?

a. the horse hair is 2 times as thick as the human hair.

b. the horse hair is 5 times as thick as the human hair

c. the human hair is 2 times as thick as the horse hair

d. the human hair is 5 times as thick as the horse hair

A.The horse hair is 2 times as thick as the human hair.

Step-by-step explanation:

We have been given that Mateo is studying a human hair with a diameter of inches and a horse hair with a diameter of inches.

Since proportions states that two fractions are equal, So we will use proportions to solve our given problem.

Now we will quotient rule of exponents to simplify our given problem.

We can see that the diameter of horse hair is 2 times the diameter of human hair. Therefore, the horse hair is 2 times as thick as the human hair and option A is the correct choice.

14

step-by-step explanation:

14 x 3 = 42

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 : )