The average cycling speed for an experienced cyclist is 18 miles per hour. What is the average cycling speed for an experienced cyclist in feet per minute? 1 mile = 5,280 feet

Step-by-step explanation:

In this problem, we are expected to convert from miles per hour to feet per minutes

given that the speed is 18miles per hour

also given is 1 mile is 5280

to carry out this conversion we proceed with the following operation

=18miles/hour*5280feet/miles*1hour/3600seconds

=95040/3600

=26.4feet/second

The answer is 26.4 feet per seconds

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.