An 8-foot rope is tied from the top of a pole to a stake in the ground, as shown in the diagram below. If the rope a 57° angle with the ground, what is the height of the pole, to the nearest tenth of a foot?

A 4.4
B 6.7
C 9.5
D 12.3

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

The area (a) of a circle with a radius of r is given by the formula and its diameter (d) is given by d=2r. arrange the equations in the correct sequence to rewrite the formula for diameter in terms of the area of the circle.

Find the unit rate. enter your answer as a mixed number. a fertilizer covers 2/3 square foot in 1/2 hour.