Choose the letter of the best answer. What should you use so that the geologic time scale covering Earth's 4.6 billion year history can be drawn as a straight line on a poster board one meter high? F 1 cm= 1 million years G 1 cm= 10,000 years H 1 cm = 100,000 years J 1 cm = 50,000,000 years

Solve each inequality and graph the solutions.

$$\frac { 1 } { 4 } x + \frac { 2 } { 3 } < \frac { 3 } { 4 }$$

Find the cube root. 7. ³√729

Use the Fundamental Counting Principle to solve. Five singers are to perform at a night dub. One of the singers insists on being the last performer of the evening. If this singer's request is granted, how many different ways are there to schedule the appearances?

How did Earth's environments change from the Tertiary Period to the Quarternary Period? Explain.

Choose the letter of the best answer. An animal that doesn't have a backbone is called a(n) a. vertebrate. b. mammal. c. invertebrate. d. amphibian.

The geologic time scale is subdivided into (a) relative ages (b) absolute ages (c) unconformities (d) eras and periods

A gap in the geologic record that occurs when sedimentary rocks cover an eroded surface is called a(n) (a) intrusion (b) unconformity (c) fault (d) extrusion

There are 50 poker chips in a container, 25 of which are red, 15 white, and 10 blue. you draw a chip without looking 25 times, each time returning the chip to the container. What is the expected number of white chips you will draw in 25 draws?

Explain how to test a population variance or a population standard deviation.

Tell whether a triangle can have sides with the given lengths. Explain. 7 mm, 10 mm, 19 mm

find the distance between the point and the plane. (3, 2, 1) , x - y + 2z = 4

Write and solve an equation. A store is having a sale where all jeans are ¼ off the regular price. Write an equation relating the sale price to the regular price. How much would a pair of $29 jeans cost on sale?

Express the number in standard form.

$$1.705 × 10^5$$