An airplane can ascend at a rate of 52 1/2 meters in 2/3 of a second how many meters can the airplane ascend in one second

Given the statements, "a square root of 16 is 4," and "a square root of 9 is -3," complete the following blanks with the correct truth-values. p is and q is , so the statement, "a square root of 16 is 4 or a square root of 9 is -3" is .

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle