Tan x = sin x / cos x , therefore tan (90-a) = ? . (all angle measurements are in degrees)
choices are below:
a. 1/tan(90-a)
b. 1/sin a
c. 1/cos(90-a)
d. 1/tan a

Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

If jaime wants to find 60% of 320, which table should he use?