A population of dolphins has 400 individuals. after 20 years, this population has had 250 births and 170 deaths, so the population has grown to 480 individuals. what is the approximate yearly growth rate, r, of this population?

You are on level ground in the late afternoon. the sun is at angle of elevation of 20 degrees. a tree casts a 200 feet long shadow. the height of the tree is

A newspaper writer will write an article about the mean age of voters. She will estimate by selecting a sample of voters and calculating their mean age. Which method should the writer use to select the sample? A.

Which diagram shows plane PQR and plane QRS intersecting only in? Question 1 options:

Triangle PQR has coordinates P (4, 5), Q (6, 3), and R (5,1). The triangle is rotated 360° around the origin. What are the coordinates of Q'?

A license plate must contain a two digit number followed by 4 letters how many possible plates are there?

A fish-tank has a length of 45 centimeters, a width of 25 centimeter and a depth of 10 centimeter. Find the volume of the fish-tank, 10250 cm3 11250 cm3 10250 ft3 11250 ft3

Last fall Zeke planted six bulbs in the ground, which in the spring would grow into 2 yellow flowers, 2 purple flowers, and 2 red flowers. What is the probability that the first two flowers that come up in the spring are 2 yellow flowers?

2. What can be used to describe the function graphed? y=3x+2

A factory can produce two products, x and y, with a profit approximated by P = 14x + 22y - 900. The production of y can exceed x by no more than 100 units. Moreover, production levels are limited by the formula x + 2y ≤ 1,400.

What is the greatest common factor between 8x and 40?