Assume that 0 < x < pi/2 and 0 < y< pi/2
Find the exact value of cos(x-y) if cos x=3/5
and cos y = 4/5
a. 25/24
b. -25/24
c. 24/25
d. -24/25

-1/4 > -1 2/3. -1/4 is greater than -1 2/3 because it is closer to 0 on the number line.

in 2010, the population of the state of california is 37.29 × 10⁶

step-by-step explanation:

population of los angeles = 3.79 × 10⁶

population of california = 9.84 × population of los angeles

                                        = 9.84 × 3.79 × 10⁶

                                        = 37.2936 × 10⁶

                                        = 37.29 × 10⁶

∴ in 2010, the population of the state of california is 37.29 × 10⁶

step-by-step explanation: