When a respondent indicates that he is 25 years old when he is actually 35 years old, he is contributing to: nonresponse error.

response error.

sampling error.

nonsampling error.

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

What is the radius of the cone in the diagram? round your answer to the nearest whole number