Plug-In and Backsolve
If (see number 10 section 3), which of the following could be a value of r?
A) rad 6
B) 2 rad 6
C) 6
D) 36
A) rad 6
If rad x + rad 9 = rad 64, what is the value of x?
A) rad 5
B) 5
C) 25
D) 55
C) 25
In the xy-coordinate plane, the equation of a function f is 3y - 2x = 6. Which of the following is an equation of a line that is parallel to the original function?
A) y = x -3
B) y = 3/2x - 3
C) y = 2/3x + 4
D) y = -2/3x - 2
C) y = 2/3x + 4
Of the following four types of population growth, which one would result in exponential growth in the population of the town?
A) Each successive year, 3% of the town's initial population is added to the town's population.
B) Each successive year, 2.5% of the town's initial population and 500 people are added to the town's population.
C) Each successive year, 2% of the current population is added to the town's population.
D) Each successive year, 500 people are added to the town's population.
C) Each successive year, 2% of the current population is added to the town's population.
What school do I go to?
Georgetown
r = 103n
s = 10n x 10n x 10n x 10n
t = 10 x 10 x 10
If n is a positive integer, which of the following could be true?
A) s > t > r
B) s > r > t
C) r > s > t
D) t > r > s
B) s > r > t
What is the solution set of the equation above?
rad (2x + 6) + 4 = x + 3
A) -1
B) 5
C) -1, 5
D) 0, -1, 5
C) -1, 5
The mean number of available apartments per building, A, at a particular apartment complex during 2015 can be estimated using the equation A = -3.625x + 96.78, where x represents the number of months since January and x < 12. Which of the following statements is the best interpretation of the number 96.78 in the context of this problem?
A) The estimated mean number of apartments available per building in January.
B) The estimated mean number of apartments available per building in December.
C) The estimated monthly decrease in the mean number of apartments available per building.
D) The estimated monthly increase in the mean number of apartments available per building.
A) The estimated mean number of apartments available per building in January.
The tables below give the distribution of children's ages at two different elementary schools. (see number 23 section 4 for tables) Which of the following is true about the data?
A) The standard deviation of children's ages at School A is larger.
B) The standard deviation of children's ages at School B is larger.
C) The standard deviation of children's ages at School A is the same as that of School B.
D) The standard deviation of children's ages at these schools cannot be calculated with the data provided.
B) The standard deviation of children's ages at School B is larger
What's my major?
Psychology
See figure in number 13 section 3
The figure above shows the parabolas y = x2 - c and y = -x2 for some constant c. If the length of RS is equal to 8, what is the value of c?
A) 16
B) 18
C) 24
D) 32
D) 32
If ab/4 = 16 for positive integers a and b, what is one possible value of b?
8
Three minutes after a man begins filling a tank with water, the tank and the water together weigh 80 pounds. As water is added, the total weight of the tank and water increases linearly with time. Five minutes after the man began to fill the tank, the total weight is 90 pounds. Which of the following linear models best describes the total weight, w, of the tank and water after m minutes have passed since the man began to fill the tank?
A) w = 5m - 397
B) w = 5m + 65
C) w = 10m + 50
D) w = 10m + 40
B) w = 5m + 65
The attendance at a school play increased by 30 percent from Friday to Saturday, and then decreased by 5 percent from Saturday to Sunday. Sunday's attendance was what percent of Friday's attendance?
A) 122%
B) 123.5%
C) 125%
D) 126.5%
B) 123.5%
Guess my zodiac sign
Aries
If a > b, which of the following must be true?
A) 2a > b
B) -b > -a
C) ab > b2
D) a2 > b2
B) -b > -a
x = 2y + 2
y = (x + 7)(2x - 1)
How many solutions exist to the system of equations above?
A) 0
B) 1
C) 2
D) infinitely many
C) 2
What is the sum of all values of x that satisfy the equation 2x2 - 12x + 6 - 0?
A) -6
B) -rad 6
C) rad 6
D) 6
D) 6
The volume of a cube is 64 cubic inches. What is the surface area of a cube, in square inches?
A) 4
B) 16
C) 64
D) 96
D) 96
How many siblings do I have and what gender?
1 younger sister
The equation (see number 15 section 3) is true for all values of x not equal to 3/a where a is a constant. What is the value of a?
A) - 54
B) -2
C) 2
D) 54
B) -2
(7 + i)/(4 - 3i)
If the expression above is rewritten in the form a + bi, where a and b are real numbers, what is the value of a?
A) 1
B) 7/4
C) 4
D) 11/4
A) 1
For a polynominal g(x), the value of g(2) is -5. Which of the following must be true about g(x)?
A) x - 7 is a factor of g(x)
B) x - 5 is a factor of g(x)
C) x + 5 is a factor of g(x)
D) The remainder of when g(x) is divided by x -2 is -5.
D) The remainder of when g(x) is divided by x -2 is -5.
There are 90 green candies and 30 orange candies in a bowl that contains 120 candies. If only green candies are to be removed from the bowl so that the probability of choosing a green candy becomes 3/5, how many green candies must be removed from the bowl?
45
How many concerts have I been to this school year?
4