What is the acceleration of a runner who goes from 1.4 m/s to 2.2 m/s in fourseconds?

Find the difference in speed:

2.2 - 1.4 = 0.8 m/s

Now divide the difference in speed by time:

0.8 m/s / 4 seconds = 0.2 m/s/s

hope this !

step-by-step explanation:

d = distance between moon and sun, which in this problem is the hypotenuse of a right triangle.  

the distance y is the side opposite to angle x in the right triangle.   use the definition of the sine function from basic trigonometry.

sin(x) = y/d ⇒

d = y/sin(x)

answer: domain and range mean all possible values of x and y that could be substituted to the inequality. a solution means all possible values that make the inequality statement true. so while the range is still all real numbers, the solution is the shaded area, for which y will always be greater than the line of the function.