numbers with operations
Numbers like -3, -2, -1, 0, 1, 2, 3 are called
integers
50=−2.5x
x=−20
Express the ratio as a fraction in simplest form:
18 ounces to 3 cups
6 to 1
A population is a collection of all individuals, objects, or measurements of interest.
true or false
True
The radius of a circle whose diameter is 25cm
12.5cm
A rational number can be written as a fraction. true or false
true
-2x + 11 + 6x
4x +11
Simplify the ratio of
35 : 14
5 : 2
If we select 100 persons from 25,000 registered voters and question them about candidates and issues, the 100 persons are referred to as the population.
False
A regular heptagon has
7 equal sides
-10 is a whole number
true or false
False
5(a + 6)
5a + 30
88 students for 4 classes
How many students per class?
22 students per class
The principal difference between the interval and ratio scale is that the ratio scale has a meaningful zero point.
true or false
true
The longest chord of a circle is
diameter
How would 0.333333 be classified?
rational and real
4(-p - 6)
-4p - 24
In a certain apartment building, the ratio of tenants to cars is 3:5. If there are 30 tenants, how many cars are there?
50
A portion or part of a population is called a
Sample
A triangle whose three sides are equal is called
equilateral triangle
-14 could NOT be which type of number?
Natural
Simplify the following expression:
19 - ( 3 - 5b)
16 + 5b
Which is NOT equivalent to 3:5?
21:28
Data measured on a nominal scale can only be classified into categories.
true or false
True
What do a rhombus and a rectangle have in common?
they are both parallelograms