Let a be a rational number and b be an irrational number. which of the following are true statements? a. the sum of a and b is never rational b. the product of a and b is rational c. b^2 is sometimes rational d. a^2 is always rational e. √a is never rational f. √b is never rational

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)

Table of values relation g values x, y 2,2 /3,5 /4,9 /5,13 which ordered pair is in g inverse? a(-2,2) b(-3,-5) c)4,9) d( 13,5)