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Of the 7 balls in an urn, exactly one is red. Balls are to be selected from the urn one at a time, randomly and without replacement, until the red ball is selected. After the red ball is selected, no more balls will be selected.

Quantity A

The probability that a total of 3 balls will be selected

Quantity B

The probability that a total of 4 balls will be selected


Which of the following CANNOT be the sum of $$6$$ consecutive odd integers?
$$a$$ = $$3^{11}$$+$$3^{16}$$+$$3^{19}$$+$$3^{23}$$)?

What is the units digit of $$a$$?

Quantity A

The number of unique prime factors of 27

Quantity B

The number of unique prime factors of 12


Vladimir invested $10,000 for one year.He invested some of the amount at 4 percent simple annual interest and the rest of the amount at 6 percent simple annual interest.

If the total interest earned for the year was between $450 and $550, which of the following statements must be true?.

Indicate all such statements.


The figure above shows a normal distribution with mean $$m$$ and standard deviation $$d$$, including approximate percents of the distribution corresponding to the six regions shown.

A survey of 5,500 book readers found that the number of books read per year was approximately normally distributed with mean 19.0 and standard deviation 2.0. Which of the following is the best description of the numbers of books read per year by the 880 book readers who read the most books?
If a two-digit number that has x as the tens digit and y as the units digit is multiplied by 5, then the value of the product is
$$n$$ is an integer such that $$111 \leq n \leq 114$$.

Quantity A

The remainder when $$n$$ is divided by $$31$$

Quantity B

$$16$$


The reciprocal of n equals 8 times the square of n.

Quantity A

$$\frac{1}{n}$$

Quantity B

2


$$|2x+7| < 13$$

Quantity A

$$x^{2}$$

Quantity B

9


What percent of $$\frac{1}{2}$$ is $$\frac{2}{3}$$?
In a certain election, $$\frac{3}{5}$$ of the voters in District K and $$\frac{1}{2}$$ of the voters in District P voted for the candidate Miguel Garcia. If 4 times as many people voted in District K as voted in District P, what percent of the voters in both districts combined voted for Miguel Garcia?
$$x \neq 0$$

$$y \neq 0$$

$$x+y \neq 0$$

Quantity A

$$x^{-3}$$+$$y^{-3}$$

Quantity B

$$(x+y)^{-3}$$


The function $$f$$ is defined by f$$(x)=2^{-x^{2}}$$ for all integers $$x$$. Which of the following could be the value of $$f(x)$$?

Indicate all such values.
An apple falls straight to the ground from a tree branch 8 meters above the ground. The apple`s height above the ground, $$t$$ seconds after it starts falling, is $$H$$ meters, where $$H=8-4.9t^{2}$$ and $$t$$ ≥ 0. How many seconds after the apple starts falling does it hit the ground?

Give your answer to the nearest 0.1 second.

_____seconds
In the xy-plane, a line that has a slope of -3 passes through the points (3, k) and (-2, m).

Quantity A

k-m

Quantity B

-15


Which of the following could be a portion of the graph of $$y=(x+2)^{2}-5$$ in the xy-plane?


Quantity A

The length of line segment AB

Quantity B

The length of line segment DC




The center of each of the five circles is point O. The radii of the five circles, from smallest to largest, are $$r$$, $$2r$$, $$3r$$, $$4r$$, and $$5r$$, respectively.

Quantity A

The area of the shaded region

Quantity B

The area of the striped region




In the figure, MN is tangent to the circle at point P, and O is the center of the circle. If the length of PN is $$2\sqrt{3}$$, what is the circumference of the circle?

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