Solve these equations fast.

(6 + 3i) (6 - 3i) =

(4 - 5i) (4 + 5i) =

(-3 + 8i) (-3 - 8i) =

What is mArc B C? 50° 80° 100° 130°

The equation of a circle is x2+4x+y2-10y+13=0 . What is the equation of the circle in standard form? (x+4) 2 + (y-25) 2=25 (x+4) 2 + (y-25) 2=16 (x+2) 2 + (y-5) 2=16 (x+2) 2 + (y-5) 2=25

You have been really sick, so you went to the doctor. The culture taken shows you have 400,000 bacteria. Your doctor prescribes a strong antibiotic which makes the bacteria decrease by a half every 4 hours.

6,12,18,24 the next term is

Between which values does √111 lie

If a sports forecaster states that the odds of a certain boxer winning a match are 5 to 1, what is the (subjective) probability that the boxer will win the match? (round your answer to two decimal places.) p (win) =

Every day Kim practice volleyball and clarinet each day she practices volleyball for 2.5 hours if after a days she practices both volleyball and the clarinet for a total of 36 hours how many hours per day did Kim practice clarinet

4 times the quotient of a number and 5

The vertex of the parabola is at (-3,-2). Which of the following could be the equation?

What is 500/100 simplified