Is the sum of 4.2 and 2 squared rational or irrational

Jeff read 3/8 of a chapter of his history book in 20 minutes. At this rate, how many chapters of his history book can he read in 1.5 hours?

A digital scale reports a 10 kg weight as whinging 9.998 kg. Which of the following is true? a. The scale is neither precise nor accurate b. The scale is precise but not accurate c. The scale is both accurate and precise d.

Scores on a standardized exam are normally distributed with a mean of 63 and a standard deviation of 7. Consider a group of 6000 students. Approximately how many students will score less than 71 on the exam?

What is the length of dk? 7.0 3.5 8.5 12.7

What is the least common multiple of 4,6

Mr. Frank has 1.08 kilograms of fertilizer for the plants in his nursery. He wants every plant to get 98 mg of fertilizer 4 times each year.

Hey slices made parallel to a the base of a right rectangular pyramid which is the area of the resulting two-dimensional cross section

Tyrone walked 8 miles in a walkathon at a speed of 2 miles per hour. How long was he walking? 4 hours 6 hours 10 hours 16 hours

True or false can a triangle be formed with sides 4 inches, 5inches, and 8 inches

The probability of choosing a 6 at random in a deck of playing cards is 1/13. what is the probability of the complement of the event of choosing a 6