A parachutist descends at 16 miles an hour. How many feet is that per hour? There are 5,280 feet in one mile. a) 8,448 feet per hour
b) 5.280 feet per hour
c) 84,480 feet per hour
d) 330 feet per hour

84480ft/hr

Step-by-step explanation:

Rate of the parachutist descent is given as:

        16miles an hour

This rate in feet per hour = ?

 Since:

                 1 mile = 5280ft

Now;

   16miles/hr to ft/hr

      16 x miles x   x    = 84480ft/hr

find the magnitude of the trig term  

csc

(

x

)

−

1

by taking the absolute value of the coefficient.

1

find the lower bound of the range.

tap for more

y

=

−

2

find the upper bound of the range.

tap for more

y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation:

salary

step-by-step explanation: