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Alebgraic Expressions
Probability & Statistics
Angles
Order of Operations
Mixed Bag
100
Simplify: 1.4p + 0.3p
1.7p
100
A letter is randomly chosen from the words SAN FRANCISCO This is the probability of choosing a vowel.
1/3
100
A triangle has angles measuring 30 degrees and 40 degrees. What is the measure of the third angle?
110 degrees
100
-5 -3 - (-4) =
-4
100
If there are 6 boys and 3 girls, what is the ratio of girls to boys in lowest form?
1:2
200
Factor the expression: -5y-16
-(5y+16)
200
You roll a fair number die. This is the probability it will land on a number greater than 4.
1/3
200
An angle greater than 0 degrees but less than 90 degrees
Acute
200
-6+8-5
-3
200
Identify direct proportion and if so, the constant of proportionality
Yes, 20
300
Factor the expression: 3x+3y+9
3(x+y+3)
300
The mean absolute deviation : (round to nearest hundredth) 60, 57, 31, 44, 85, 90, 51, 54, 83, 78
mean = 63.3 MAD= 16.56
300
I have 1 right angle, 2 other equal angles always of 45°, and 2 equal sides
Isosceles triangle
300
-99 ÷ (-9)
11
300
Expand and simplify: 2(3y + 2) + 5
6y +9
400
Translate and Simplify: Four times the difference of one-half x subtracted from three-eighths y
4(3/8y - 1/2x) = 4(3/8y) + 4(-1/2x) = 3/2y +(-2x) = 3/2y - 2x
400
The sampling method used here: As melons are unloaded from a truck, Elio picks every 10th melon until he has collected 80 melons to estimate the average mass of the melons.
systematic random sampling
400
Angles adding up to 180* are known as ________.
supplementary
400
-5/6 + 1 1/3 ____________ 3[1/6 - (-4/9)]
3/11
400
Round to the nearest 7 significant digit: 46,009.491
46,009.49
500
Solve: 0.5(2m -3) - 0.8m = 2.7
m=21
500
Determine Q3: 160 students participated in a math competition. The results of the competition are as follows: -120 students received a score of at least 18 -among the middle 50% of the students, 40 of them received a score lower than 22 -the median is three-quarter the length of the interquartile range from the upper quartile on the number scale. The two extreme values are 0 and 42
-Percentage scoring at least 18 = 75% (120/160 x 100% = 3/4 X 100% = 75%) -Q1 = 18 points (Percentage of students scoring lower than 22= (40+40)/160 x 100% = 50%) -Q2 = 22 points -Q3= 18+16=34 points
500
Angles that adding up to a total of 90°
Complementary Angles
500
-3[4.1 - (-2.3)] - 0.4[-6.7 + 3(2.4)]
-19.4
500
The circumference of a circle is 83.5cm. Calculate the radius of the circle correct to 3 significant digits. Use 3.14 as an approximation for π (pi).
3.3 cm