Formulas
What is the formula for area of a rectangle?
What are complementary angles?
Angles that when added together equal 90 degrees
Adding two numbers when the signs are the same
If the signs are the same, add the absolute values and keep the same sign
At 3pm, the outside temperature was 4 degrees fahrenheit. The temperature then fell steadily by 2 degrees fahrenheit every hour for the next 4 hours. What was the temp at 7pm?
-4 degrees fahrenheit
Which expression is equivalent to 2(3 - x)
a. 6 - x b. 3 - 2x
c. 2 - 6x d. 6 - 2x
D
What is the area for area of a triangle?
(1/2) B X H
what are supplementary angles?
angles that when added together equal 180 degrees.
If the signs are different, subtract the absolute values and use the sign of the number with the larger absolute value
Ms. G has 46.25 feet of ribon for a border around a bulletin board for her classroom. The board is 3.75 feet tall and 8.25 feet wide. How many feet of ribbon will Ms. G have left after she puts up the boarder around the board?
22.25 ft
What is the result of adding -2.9a + 6.8 and 4.4a - 7.3
a. 7.3a + 14.1 b. 7.3a - 14.1
c. 1.5a + 0.5 d. 1.5a - 0.5
D
What is the formula for volume of a rectangular prism?
L x W x H
What are vertical angles?
-4 - (-3)
-1
How do we change a percentage into a decimal?
You move the decimal point to the left 2 spaces.
90cm cubed
formula for volume of any prism
The volume of any prism is calculated by multiplying the area of its base (B) by its height (h), so V = B x h
What is a right angle?
and angle that is 90 degrees
multiplying a negative and a positive number
the answer is negative
Dan estimated that he painted 1 wall using 1/4 can of paint. Based upon this estimate, how many walls can he paint with 1 can?
4 walls.
a triangular prism has a base of 13 ft, a height of 10 feet and a length of 7 ft. What is the volume?
455 ft cubed
formula for the volume of a triangular prism
(1/2) L x W x H
What is a rational number?
Rewrite the subtraction problem as addition by adding the opposite (additive inverse) of the second number.
multiplying numbers that have the same sign (both positive or both negative)
the answer is positive
Dan is at a Deli buying lunchmeat for a party. Ham cost $3 per pound. How many pounds of ham can he buy with $13
4 pounds of meat and he would have $1 left over.
find the product.
12 x -2 =
-24