The percent P of a population that has completed 4 years of college is given by the function P(t) = -0.001t2 + 0.4t where t
represents time, in years. What percent of the population have
completed four years of college after 20 years, to the nearest tenth?
A sample of 300 jellybeans was removed from a barrel of jellybeans. All
of the jellybeans in the barrel are one of four colors: red, orange,
green, and purple. For the sample, the number of jellybeans of each
color is shown in the table below.
Color
Number of jellybeans
red
75
(D) -8
(E) -12
Correct Answer: A
Every week, Donald records the amount of mileage that has accumulated
on his truck. On Monday, Donald recorded that he had driven 16,450
kilometers. After a week of deliveries, his new recording was 18,130
kilometers. He drove for thirty hours during that week. What was his
average driving speed during that week to the nearest kilometer per
hour?
BAC and 
. The diagonals of trapezoid DECA intersect at F. The lengths of 
and 
are 6 centimeters, the length of 
is 27 centimeters. What is the length, in centimeters, of 
?