Proof cot a/2 = 1+cos a/sin a?

How do you no if a problem is single or proper

You have $380,000 inyour bank account. The interest rate in your account is5%. Solve for the following: a. How muchinterest will you accumulate if interest is compounded annually over the next five years?

If the line ax+2y+5=0 and 5x+3y+1=0, find the value of a

At a certain University the student to teacher ratio is 16:1. If there are 2,000 students and rolled how many teachers must be employee to maintain this ratio

A small business owner converts 120 J of her internal energy to electricity by peddling a bike for 1 second, which for a conversion efficiency of 40 percent, amounts to a power output of 48 watts.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.