Chapter 1 & 2
What is −6+14
8
What is 1/2+1/4
3/4
Simplify: 4x+2x
6x
Describe the likelihood of the event given its probability.
It snows on 2/5 of the days in February.
The likelihood of snow in february is
unlikely
What is the radius of a circular lid with a diameter of 5 centimeters?
radius:
2.5cm
Evaluate:(-5)(7)
-35
What is 3/5−1/5
2/5
Solve: x+7=19
12
You check 20 laser pointers at random. Three of the laser pointers are defective. What is the experimental probability that a laser pointer is defective?
The experimental probability that a laser pointer is defective is
3/20
The radius of a circle is 25 millimeters. Find the diameter.
diameter:
50mm
What is -18/3
-6
Evaluate: 2.4+3.8
6.2
Solve: 3x=27
9
You roll two number cubes. What is the probability of rolling double threes?
1/36
A desktop is shaped like a semicircle with a diameter of 28 inches. What is the area of the desktop? Round your answer to the nearest square inch, if necessary.
area
308in
Evaluate: −4+9-12
7
Multiply: 3/4×8
6
Simplify: 2(5x−3)
10x-6
You flip two coins and roll a number cube. What is the probability of flipping two tails and rolling as even number?
3/24
A cereal box has a volume of 225 cubic inches. The length of the base is 9 inches and the width of the base is 2.5 inches. What is the height of the box?
10in
A football team loses 8 yards, gains 15 yards, then loses 12 yards. What is the total change?
-5
A runner jogs 2.5 miles Monday and 3.75 miles Tuesday. How many total miles?
6.25
Solve: 4x−5=19
6
Each letter of the alphabet is printed on an index card. What is the theoretical probability of randomly choosing any letter except Z? Write your answer as a fraction or percent rounded to the nearest tenth.
The theoretical probability of choosing a letter other than Z is
25/26
Solve the inequality.
R+0.5<-0.4
The solution is
R<-0.9