Write a compound inequality that represents the situation. on a road in the city of rochester, the maximum speed is 50 miles per hour, and the minimum speed is 20 miles per hour.

a. 20 > x > 50

b. 20 ≤ x ≤ 50

c. 20 ≥ x ≥ 50

d. 20 < x < 50

Step-by-step explanation:

If the maximum speed is 50 miles per hour, that means it cannot go above 50 miles per hour, it has to be 50 miles per hour or less, which is expressed like this

Now, if the minimum speed is 20 miles per hour, that means the speed can only be 20 miles per hour or more, that's represented as

If we unit both expression, we would have the following compound inequality

This means that the speed has to be 20 miles per hour or more, but 50 miles per hour or less.

Therefore, the right answer is

so, converting firstly the mixed fractions to improper fractions and then "adding".

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph