Convert z = 9cos200° + 9isin200° from polar form to rectangular form.

-8.46 - 3.08i

-2.09 - 6.84i

8.46 + 3.08i

2.09 + 6.84i

The fastest train on earth can travel 800 miles in 2.5 hours because it uses magnets to make it hover above the tracks rather than touching the tracks. What is its average speed?

Each side of a square is increasing at a rate of 5 cm/s. At what rate is the area of the square increasing when the area of the square is 49 cm2

A group consists of fourfour men and eighteight women. threethree people are selected to attend a conference. a. in how many ways can three three people be selected from this group of twelve twelve

What is the probability that a person chosen at random from the cafeteria is a girl or a teacher?

The equation of a circle is x2 + y2 - 8x + 6y + 9 = 0. Find the center and the radius of the circle. Then graph the circle.

If Ivan has 2/3 hours in his MP3. Is there is more than or less than 60 minutes of jazz on Ivan MP3 player? Explain how you know

Jamal 5/6 of his homework. Margaret finished 3/4 of her homework and Steve finish 10/12 of his homework. Which students finish the same amount of homework?

How do you write the slope intercept form

Algebra 2 Substitutions x-9y=25 6x-5y=3

Math word problem. Mike paid $59.00 for a bike. He paid with FOUR bills. What were the bills? Tell me the denomination of each bill and how many were used. Make sure to explain to me how you know this and how it totals $59.00