Quantitative

Question 0

What is the equation for the number of permutations of k items selected from n?

Answer 0

n!/(n-k)!

Question 1

Are there any even primes?

Answer 1

Yes - 2

Question 2

What is the equation for the number of permutations of of n items?

Answer 2

n!

Question 3

What is the formula for k unordered selections from n items?

Answer 3

nCk=n!/k!(n-k)!

Question 4

What is the equation for combined rates of work that invokes only 2 entities?

Answer 4

Total Time = AB/(A+B)

Question 5

What is the equation for simple interest?

Answer 5

T=P(1+rt)

Question 6

What is the equation for compound interest?

Answer 6

T=P(1+r)^t

Question 7

What is the equation for how to calculate the number of degrees in a polygon?

Answer 7

180(n-2)

Question 8

What is the only number that is neither positive or negative?

Answer 8

0

Question 9

Odd+or-odd= ?

Answer 9

Even

Question 10

Even+or-even=?

Answer 10

Even

Question 11

Odd+or-even=!

Answer 11

Odd

Question 12

Odd*odd=?

Answer 12

Odd

Question 13

Even*even=?

Answer 13

Even

Question 14

Odd*even=?

Answer 14

Even

Question 15

Odd^{(any positive integer)}=?

Answer 15

Odd

Question 16

Even^{(any positive integer)}=?

Answer 16

Even

Question 17

What are the two best alternative strategies for problem solving according to Kaplan?

Answer 17

Picking numbers and back-solving

Question 18

What’s a quick way to calculate 15%?

Answer 18

10%+5%

Question 19

What different types of questions are good for picking numbers?

Answer 19

Questions with… Variables in the answer choices Percents in the answer choices Variables in the question stem Must be/could be/cannot be questions

Question 20

What is the difference between percent increase and percent greater?

Answer 20

Percent increase follows the equation %inc=100*(new-old)/old Percent greater is (smaller #)*(%greater)=(larger #) EX: 4 is a 300% increase from 1, but 400% greater

Question 21

What are some keywords that indicate they want it to be solved via estimation?

Answer 21

About, approximately,

Question 22

When “picking numbers”, what are good numbers to choose?

Answer 22

Zero and one because of their “special” properties.

Question 23

What is the smallest “prime” of a X!+1?

Answer 23

>X

Question 24

What is an isosceles triangle?

Answer 24

Two side and two angles are the same

Question 25

What is a scalene triangle?

Answer 25

No sides or angles are the same

Question 26

What are the 4 different basic properties of a set and what are the equations?

Answer 26

Mean: sum of set/ # of #'s in set Mode: number that occurs the most often Median: the middle number or average or the two middle Range: largest minus the last.

Question 27

What is variance and standard deviation?

Answer 27

The measure of how spread out the numbers are. Variance: Standard deviation: Square root of the variance

Question 28

What are the equations for finding the sum of a evenly spaced set of ascending numbers?

Answer 28

Median\*(# of #'s in set) (Two middle #'s)\*(# of #'s in set)/2 Can be any two numbers that are equidistant from average

Question 29

Sum of numbers equation

Answer 29

Sum of values=ave\*# of values

Question 30

How many factors does a prime have?

Answer 30

2 factors, 1 and itself

Question 31

What is: 5⁵

Answer 31

3,215

Question 32

What is: 4⁵

Answer 32

1,024

Question 33

What is 9!

Answer 33

362,880

Question 34

What does 8! equal?

Answer 34

40,320

Question 35

What does 7! equal?

Answer 35

5,040

Question 36

What does 6! equal?

Answer 36

720

Question 37

What does 5! equal?

Answer 37

120

Question 38

y^xy^z=?

Answer 38

y^(x+z)

Question 39

2^(½)≈?

Answer 39

1.41

Question 40

3^(½)≈?

Answer 40

1.73

Question 41

6^(½)≈?

Answer 41

2.45

Question 42

7^(½)≈?

Answer 42

2.65

Question 43

5^(½)≈?

Answer 43

2.24

Question 44

What special triangle is the isosceles triangle split in half, and what are its angles, and ratio of the lengths of sides and hypotonuse?

Answer 44

Question 45

What special triange is a square cut in half and what are its angles and ratios of the sides?

Answer 45

Question 46

What is a shortcut to find the fractional number of 1/16?

Answer 46

100/100 \* 1/16 = 4\*25/100 \* 1/4\*4 = 25/100 \* 1/4 = 6.25/100 = .0625

Question 47

What are the two ways to find the answer to weighted averages?

Answer 47

1. set the differences from the average equal to each other. 2. set up the normal algebraic equation.

Question 48

Key word, PERCENT, means

Answer 48

1/00

Question 49

If kx=y where k is a constant greater than 1, is x\>y?

Answer 49

Indeterminate, x can equal y like when k=1, be \> like when the constant is -2 and x is positive, or \< like when the constant is -3 and x is negative.

Question 50

An inscribed angle cuts off an arc that is _______ its measure in degrees

Answer 50

Twice. Ex: an inscribed angle of 60 degrees cuts an arch of 120 degrees.

Question 51

2^(1/3)≈?

Answer 51

1.26