Vocabulary
What are two angles with a sum of 180o known as?
supplementary angles
What is the area of a triangle with a base of 12.5 cm and a height of 4.8 cm?
**Don't forget the units.
30 cm2
Simplify the expression:
-2(8x - 9) + 4x
-12x + 18
What two measurements are used to determine variability and consistency?
range & IQR
A train traveled 2/5 of the distance in 2/3 hour. How long will it take the train to travel the entire distance?
5/3 hours
or
1 2/3 hours
What is the likelihood, or chance, of an event or series of events to occur?
probability
What is the circumference and area of a circle with a radius of 14 inches?
**Don't forget the units.
circumference = 87.92 inches
area = 615.44 in2
Solve for x.
3(2x - 7) = -0.6
x = 3.4
Which of the following canNOT be found from a box-and-whisker plot?
range, median, IQR, mean, minimum value, mode
**There may be more than one answer.
mean & mode
A sweater is originally priced at $40. It is on sale for 20% off. What is the sale price of the shirt?
$32
What two characteristics are found in a good, unbiased sample?
random & representative
A triangle has two other angles measuring 80o and 45o. What is the other angle measure?
55o
Simplify the expression.
(4x - 2) - (8x + 7)
-4x - 9
You have a number cube (1-6). What is the probability of rolling a number greater than 2?
2/3
A baby weighed 6 pounds at birth. At a check up he weighed 9.5 pounds. What was the percent increase of the baby's weight?
**Round to the nearest tenth of a percent.
58.3%
What are two angles with a sum of 90o known as?
complementary angles
What is needed to identify a unique triangle?
side lengths
Solve for x.
-2(4x + 6.3) - 3x = 33.6
x = -4.2
You have a number cube (1-6) and a quarter. What is the probability of rolling a 2 or 5 and landing the quarter on tails?
1/6
What are the two characteristics of a graph that shows a proportional relationship?
begins at the origin & is a straight line
What is the distance around a circle called?
circumference
A trapezoid with bases measuring 10 mm and 6 mm has an area of 45 mm2. What is the height of the trapezoid?
5.625 mm
A rectangle has a length of (3x - 8) and a width of (5x + 5). What is the perimeter of the rectangle?
16x - 6
You have a bag of candy that has 3 Kit Kats, 5 Snickers, 2 packs of Sour Patch Kids, and 7 Starbursts. What is the likelihood of reaching in and picking a Snickers?
unlikely
A gopher started at 5 inches below the surface of the ground. It dug at a rate of 1.5 inches per minute for 5 minutes and then took a rest. It then began digging for 3 minutes at a rate of 2.25 inches per minute. What is the gopher's new elevation?
-19.25 inches
or
19.25 inches below the surface of the ground