Francois' car gets about 12.5 kilometers per liter. he is planning a 1600 kilometer trip. about how many liters of gas should he plan to buy? at an average price of $1.18 per liter how much should he expect to spend on gas?

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

Evaluate cos2θ for cosθ = square root of 3/2

The average daily maximum temperature for laura’s hometown can be modeled by the function f(x)=4.5sin(πx/6)+11.8 , where f(x) is the temperature in °c and x is the month. x = 0 corresponds to january.what is the average daily maximum temperature in may? round to the nearest tenth of a degree if needed.use 3.14 for π .