Semester Review

Equations

100

2x + 1 = 23

x=11

200

3x-26=10

x=12

300

8x-8=-40

x=-4

400

3x-5=-11

x=-2

500

-x+1=-7

x=8

Angles and triangles

100

What are vertical angles?

opposite angles that have the same measure

200

What are complementary angles?

Two angles that add up to 90 degrees

300

What are supplementary angles? 

Two angles that add up to 180 degrees

400

What are adjacent angles?

two angles that are next to each other (next door neighbors)

500

A triangles two sides measure 5 and 12.   What is a possible measure for the third side?

6-20

Area

100

Find the circumference of a circle 

Diameter = 52

163.28

200

Find the area of a circle

Radius = 13

530.66 

300

What is the volume of a triangular prism 

Triangle face has a base of 12 and a height of 7

The height of the prism is 18

756

400

Formula for the area of a triangle

1/2 BH

500

formula for area of a circle 

pi x r²

Mean, Median & Mode

100

What is the mean? 

30,70,65

55

200

What is the median?

2,3,5,7,10,11,12

7

300

What is the Median? 

20,22,24,25,26,26,28,28,30,31

26

400

What is the mean? 

75,67,55,57,65,61,65,69,62,60,68,67

64.25

500

A dot plot shows the number of sigblings students have.   The least is 0 and the most is 8.   What is the range? 

8

Volume and scientific notation

100

The volume of a cylinder is 90pi and the height is 5cm.  What is the radius?

radius =4.24

200

A cone has the following dimensions:

Diameter 8ft

Height 9ft

What is the volume?

16.7

300

The diameter of a sphere is 6in.   What is the volume? 

113.04

400

8.315x10^-9  X 1.436x10⁶

1.19906 x 10^-2

500

7³ x 7ⁿ = 7¹⁴

^{What is the value of n?}

.n=11