Simplify the following, where k represents any integer: cos (2kpi-x) (-sin (2kpi-x))

a. - cosx*sinx

b. (1/2) sin (2x)

c. cos ((1/2) x) ^2

d. cos (x) ^2*sin (x) ^2

e. undefined

Kylie borrowed a book from a library. The library charged a fixed rental for the book and a late fee for every day the book was overdue. The expression below shows the charges Kylie paid for the book when she returned it x days after the due date.

The class sold 5 boxes of chocolate. jay sold 5, susan sold 8 james sold 9 how many did josh sell?

Kate and Margaret spend $42.60 on dinner at a restaurant They leave a tip that is 15% of the cost of the dinner. What is the total cost of the dinner including the tip? F $6.39 G $36.21 H $48.99 J $57.

For which equations is x = 9 a possible solution? |x| = 9 -|x|=9 -|-x|=9 -|-x|=-9 |x|=-9 |-x|=9 |-x|=-9

When solving for y in a equation what is the answer to 5x-3y=21

A=5 b=12 d=2 4a= b + 4d

10. The floor of a rectangular hall has a perimeter 250 m If the cost of painting the four walls at the rate of Rs 10 per m^2 is Rs 15000, find the height of the hall.

what is 6/21 simplified

What's a prime factor of 28

You eat 3/10 of a pack of hotdogs, your friend eats 1/5 of the pack of hotdogs. what fraction of the hotdogs did you and your friend eat?