CC2 Final Review #2

Module 1

100

Define circumference

The distance around a circle

200

If the diameter of a circle is 15.2 cm, what is the radius?

7.6 cm

300

If the radius of a circle is 3 cm, what is the area?

28.26 cm squared

400

On a map, if 2 inches is 300 miles, how many miles is 4.5 inches?

675 miles

500

Find the constant of proportionality, k for this:

x       y

0.4   1.4

.8     2.8

1.5   5.25

k = 3.5

Module 1 (cont.)

100

What is 33% of 100?

33

200

A computer is originally $1200, but is on clearance for 50% off. How much is the selling price?

$600

300

My restaurant bill is $37.50, and I want to tip 25%. What will my tip amount be? Round to the nearest hundredth.

$9.38

400

A shirt originally cost $47.99, but is on sale for 20% off. What is the selling price? Round to the nearest hundredth.

$38.39

500

I took out a loan for $3500 for 8 years. If my interest rate is 4%, how much interest will collect on the loan?

I =prt

I = 3500(0.04)(8)

I = $1120

Module 3

100

What is -10 + 10

0

200

Combine like terms:

3x² + 8x - 10 - 8x² - 3x + 15

-5x² + 5x + 5

300

Solve:

x + 8 + 3x > 26

x > 4.5

400

List the following from least to greatest:

0, x, -x, 2x, 0.5x, -2x, -0.75x

-2x, -x, -0.75x, 0, 0.5x, x, 2x

500

Solve: 8 - 4y + 4 < 38

y > -6.5

Module 4

100

What is a census?

When you survey an entire population

200

Which class set has bigger variation:

Class 1: 21, 8, 79, 100, 99

Class 2: 78, 80, 90, 99, 98

Class 1; the data varies much more

300

Find the median of this data: (sort in order first)

12, 90, 60, 67, 77, 90, 25

67 is in the middle!

12, 25, 60, 67, 77, 90, 90

400

What is the difference between theoretical vs experimental probability?

Theoretical is an expectation of how often an event will occur, while experimental probability is based on the actual results of an experiment

500

What is the probability of rolling a 1, AND then a 5 when rolling a 6-sided die?

Give answer as a fraction

(1/6)(1/6) = 1/36

Module 5

100

How many degrees are in a full circle?

360 degrees

200

What is the name of an angle that is greater than 90 degrees?

Obtuse

300

What is the name of the triangle with 2 equal sides?

Isosceles

400

A triangle has interior angles of 87, x, and 33. Find the missing angle x

60 degrees

500

Can these side lengths create a triangle? Why or why not? 16, 23, 38

Yes, 16 + 23 = 39, which is greater than 38