9.) If a loading ramp is placed next to a truck, at a height of2feet, and the ramp is19feet long, what angle does the ramp make with the ground?

Round your answer to one decimal place.

The ramp makes an angle of?degrees with the ground.

10.) Use basic identities to simplifycos^3x+sin^2xcosx

Remember that writing sin(x) to the fourth power assin^4(x)is just a mathematical shorthand. You should write it as(sin(x))^4

cos^3x+sin^2xcosx = ?

11.) Rewritesin(x+5/6)in terms ofsinxandcosx

Enclose arguments of functions in parentheses. For example,sin(2x)

sin(x+5/6) = ?

12.) The volumeVof an ideal gas varies directly with the temperatureTand inversely with the pressureP. A cylinder contains oxygen at a temperature of310degrees K and a pressure of18atmospheres in a volume of120liters. Find the pressure if the volume is decreased to90liters and the temperature is increased to330degrees K.

Round your answer to two decimal places.

The pressure is?atmospheres.

Please explain the process of each of these questions so that I can better understand what I am doing, Thank you!!