Solve for x Enter the solutions from least to greatest 5x^2 + 45x + 90 = 0

Evaluate this using ! 0.25^2 x 2.4 + 0.25 x 2.4^2 − 0.25 x 2.4 x 0.65

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.

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