Vocabulary
DOUBLE POINT QUESTION!
The like terms in this expression are:
-3x - 5 - 7x - 9
- 3x and - 7x, - 5 and - 9
3(x - 2) + 14
3x + 8
-11 + 3
-8
-8(-11)
88
The reciprocal of this number:
-9
-1/9
Rational or irrational?
0.3
What is the sum of the absolute value of -28 and the opposite of -12?
40
DOUBLE POINT QUESTION!
The temperature inside Mammoth Cave is about 12.2 degrees C year round. If the temperature outside the cave is -2.4 degrees C, what is the temperature change from outside to inside the cave?
14.6 degrees C
Use the distributive property:
(s-9)9
9s- 81
15 divided by (-3/4)
-20
In the expression -15x + x2 , why can't we combine the terms?
DOUBLE POPINT QUESTION!
Simplify:
(z - 4)(-z)
-z2 + 4z
The temperature change from -45 degrees to 62 degrees.
107 degrees
-3/4(2)(-6)
9
The reciprocal of this number (in fraction form):
-4 1/3
-3/13
What type of number is -4?
Rational number, integer, or whole number?
Integer
Order from least to greatest:
-5.2, -3/8, -6, 0.3, -1/4
-6, -5.2, -3/8, -1/4, 0.3
-12 3/4 + 6 9/10
-5 17/20
Multiply:
-2 2/3 x 4 5/6
Answer as a simplified mixed number.
-12 8/9
DOUBLE POINT QUESTION! The mean of these numbers:
7, -4, 1, -9, -6
-2 1/5
Identify the like terms, coefficients, and constants in this expression:
8 - 5x + 3 + 12x
like terms: 8 and 3, - 5x and 12 x
coefficients: - 5, 12
constants: 8, 3
DOUBLE POINT QUESTION!
Find the perimeter and area of a rectangle with sides lengths:
9, 8-12w
Perimeter: 34 - 24w
Area: 72- 108w
Evaluate:
-1.7 + (-5.4)+ (-x); x = 2.4
-9.5
-6r(-2.8r)
16.8r2
Simplify:
(5- 25q) divided by 10
1/2 - 5/2q