Right triangle FHG. the sine of angle F ia .53. what is the coaine of angle H?

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?

An appliance store sells a washer-dryer combination for $1800. if the washer costs $300 more than the dryer, find the cost for each appliance.