Find real numbers a and b so that the transformation l(x, y) = (aa− b, b+ aa) produces the specified rotation
and dilation.
a. rotation by 270° counterclockwise and dilation by scale factor 1/2.
b. rotation by 135° counterclockwise and dilation by scale factor √2.
c. rotation by 45° clockwise and dilation by scale factor 10.
d. rotation by 540° counterclockwise and dilation by scale factor 4.

Acommunity group sells 2,000 tickets for its raffle. the grand prize is a car. neil and 9 of his friends buy 10 tickets each. when the winning ticket number is announced, it is found to belong to neil's group. given this information, what is the probability that the ticket belongs to neil? a.1/5 b.1/10 c.1/200 d.1/4

Which of the following expressions is equal to 2x^2+8

Trent wants to buy 2 packs of trading cards for 3 dollars each. the trading card packs that trent normally buys tend to come in packs of 6, 10, 12, or 15 cards. after selecting 2 packs, trent found that the first pack of cards cost 25 cents per card, and the second pack cost 30 cents per card. trent uses this information to write the equations below in order to compare c, the number of cards in each pack.