Ratios and Proportional Relationships
The missing value of the ratios: 4:5 and 12:___
15
The distance from the center of a circle to its edge.
What is a radius?
The product of a positive and negative value is...
Negative
An unknown value usually expressed as a letter
What is a variable?
Two angles that form a right angle
What are complementary angles?
A percentage of 100%
What percentage represents the original amount in a situation?
The distance around a circle
What is the circumference of a circle?
The quotient of two negative values is ...
A positive value
The boundary points of this inequality does NOT include the value
What is a less than or greater than sign?
An angle that has a measure of 180°
What is a straight angle or line?
The value relating equivalent ratios in a relationship
What is the constant of proportionality?
This constant has a value of approximately 3.14159...
What is pi?
The value of -4 + (-6)=
An inequality with values including 4.99, 4, 0, -1, -5,...
x<5
The total space that an object fills
What is volume?
Can be represented by the equation y=kx
What is the equation used to represent a proportional relationship?
The circumference of a circle with radius 5 m is ...
10pi m or 31.4 m
The value of -15 - (-12)=
-3
9
Congruent angles formed by intersecting lines
What are vertical angles?
A percentage of 125% of the original amount
How can you represent a 25% increase as a single percentage?
The area of a circle with radius 9 cm is ...
81pi cm2 or 254.34 cm2
Any number that can be expressed as a fraction of integers?
What is a rational number?
When multiplying or dividing an inequality with a negative value
When do you reverse the inequality sign in an inequality?
The flat bottom of a prism where all cross sections cut parallel to it are the same.
What is the base of a prism?