Find the height of a clock tower if the angle of elevation from a horizontal point 430 m from its base is 40°.

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

Solve the equation by completing the square. x^2+2x=17