A student wants to know how far above the ground the top of a leaning flagpole is. At high noon, when the sun is almost directly overhead, the shadow cast by the pole is 9ft long. The student holds a plumb bob with a string 2ft long up to the flagpole and determines that the point of the plumb bob touches the ground 10in. from the base of the flagpole. How far above the ground is the top of the pole?

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

16 is the absolute value

step-by-step explanation:

thus, the first answer choice, y = sec x, is the correct one