Number & Quantity

Question 1

Pascal’s Triange

Answer 1

Triangle starts 1 at top which is row #0

Question 2

Remainder Theorem

Answer 2

ie: You can check if x-2 is a factor of a polynomial for substituting 2 in for x in p(x). For a polynomial p(x) and a number “a”, the remainder when p(x) is divided by x-a is p(a). p(a)=0 if and only if “x-a” is a fator of p(x).

Question 3

How many feet in 1 mile?

Answer 3

5,280 ft

Question 4

What is the square root of -1?

Answer 4

i

Question 5

What is i^2?

Answer 5

-1

Question 6

Composite Number

Answer 6

A non-prime positive integer greater than 1 which can be factored into prime factors. ie: 105 = 3 x 5 x 7

Question 7

Prime Number

Answer 7

A number that can only be divided by itself (1 is NOT a prime number)

Question 8

Relatively Prime

Answer 8

TWO NUMBERS are relatively prime if the greatest common divisor between them is 1 ie: 18 (2, 3 , 9) & 49 (7) have no common divisors

Question 9

What is the Multiplicative Identity (for real numbers)?

Answer 9

1 “What you multiply to stay the same”

Question 10

Hindu-Arabic Numberals

Answer 10

The number system used in the United States

Question 11

Compounding Interest

Answer 11

P(1 + r/n)^nt

Question 12

What is the inverse of a 2x2 matrix?

Answer 12

1/determinant x the 2x2 matrix with a&d reversed and b&c negated