The Number System
Write the rational number 0.1515... as a fraction
15/99
52 + 53 =
150
(x,y) is in Quadrant I. Reflection across the y-axis would move it to a point with the following coordinates
A) (x, y) B) (-x, -y) C) (x, -y) D) (-x, y)
(-x, y)
150 students were surveyed and asked whether they played a sport and whether they played a musical instrument. 60 played a sport and an instrument, 30 play a sport but not an instrument, 10 do not play a sport but play an instrument, and 50 do not play a sport and do not play an instrument.
Which two sections add up to just over half of the surveyed students?
The two sections that do not play an instrument.
Which of the following sets of ordered pairs represents a function?
A) (0,1) (0,2) (1,3) (1,4) B) (1,1) (1,2) (1,3) (1,4)
C)(2,5) (2,6) (4,7) (5,7) D)(-7,10) (7,10) (8,9) (9,10)
(-7,10) (7,10) (8,9) (9,10)
If you were to arrange the following numbers on the number line from least to greatest, which one would be last? A) 3.6 B) 3 7/12 C) square root of 12 D)3 9/10
3 9/10
The cube root of 150 is closest to which of the following
A) 15 B) 10 C) 5 D) 3
5
If two parallel lines are cut by a transversal, the alternate interior angles are _________.
Congruent
Typically air temperature decreases through the night between midnight and 6:00am. This is an example of what type of association? (positive vs negative & linear vs nonlinear)
Negative linear association.
If line A, denoted by y = x + 9, and line B, denoted by y = 5x - 3 are graphed, which of the following statements is correct?
A) Line B has a steeper slope B) Both lines have the same slope C) Line A has the steeper slope D) There is not enough information to answer the question
Line B has a steeper slope
Which of the following equations has the same slope as the line passing through the points (1,6) and (3,10)?
A) y= 2x - 9 B) y= 5x - 2 C) y= 4x - 5 D) y= 9x - 6
A) y= 2x - 9
Which of the following has the least value?
A) -1.56 x 102 B) -1.56 x 103
C) 1.56 x 102 D) 1.56 x 103
B) -1.56 x 103
A robot begins at point A, travels 4 meters west, then turns and travels 7 meters south, reaching point B. What is the approximate straight-line distance between points A and B?
8 meters
If a figure shows a scatter plot relating the temperature in a school's parking lot, in degree Fahrenheit, to the number of hours past noon. The slope of the associated line is -3. What does the slope indicate?
A temperature decrease of 3oF per hour
Which function is represented by these ordered pairs?
(0,2) (1,4) (2,6) (3,8)
A) y= 2x + 2 B) y= 3x - 4 C) y= 4x - 5 D) y= 6x -8
y= 2x + 2
Solve the following linear equation for y.
-y + 7y - 54 = 0
y = 9
Approximate the quotient and express the answer in standard notation. (1.298 x 104) / (3.97 x 102)
32.7
A cone has a height of 9 and a base who radius is 4. Find the volume of the cone.
150.72
Preferred Sports-
Volleyball (5 boys, 30 girls), Basketball (30 boys, 5 girls), Softball (15 boys, 15 girls)
Out of the scholars who preferred volleyball, about what percent were girls?
About 85%
Jim owes his parents $10. Each week, his parents pay him $5 for doing chores. Which of the following functions correctly relates the total amount of money m, in dollars, that Jim will have to the number of weeks w?
A)m=-5w-10 B)m=-5w+10 C)m=5w-10 D)m=5w+10
m=5w-10
Solve the following linear equation:
0.64x - 0.15x + 0.08 = 0.09x
x = -.2
The swim team is preparing for a meet. Which of the following is Lindy's fastest time?
A) 5 laps in 15 minutes B) 4 laps in 16 minutes
C) 2 laps in 10 minutes D) 3 laps in 18 minutes
5 laps in 15 minutes
Select the equation you would use to find the volume of a sphere with a radius of 7cm.
A) 4(3.14)72 B) 4/3(3.14)73 C) 4/3(3.14)72
4/3(3.14)73
Solve the system:
-4x + 7y = 26
4x + 7y = 2
(-3, 2)
In the coordinate plane, in which quadrant is the ordered pair, (1, 8) located?
A) I B) II C) III D) IV
Quadrant I