Math Knowledge

Question 1

If A = 6 and B = 5, what is the value of (A2- B2)2?

it is not times 2; the 2’s are an exponents

Answer 1

121

Question 2

What are the factors of x2 + 4x + 3?

Answer 2

(x + 3)(x + 1)

Question 3

The hypotenuse of a right triangle has a length of 14 units and a side that is 9 units long. Which equation can be used to find the length of the remaining side?

Answer 3

x2= 14^2 - 9^2

^2 means exponent. So it’s 14 to the power of 2

Question 4

Simplify: 3/5x + x

Answer 4

8/5x

Question 5

The product of 3! Is

Answer 5

6

Question 6

The factors of 2x^2 + xy - 3y^2 are

Answer 6

(2x + 3y)(x - y)

Question 7

What is the product of the reciprocals of 2/3, 1/8, and 5?

Answer 7

2-2/5

Question 8

The reciprocal of 3-1/5 is

Answer 8

5/16

Question 9

What is 8b - ab + 7a subtracted from 3a-9ab + b?

Answer 9

4a - 10ab + 9b

Question 10

The coordinates of points A and B are (2, 4) and (-2, -4) respectively. What is the slope of the line that connects the two points?

Answer 10

2

Question 11

Which of the following is NOT a prime number?

Answer 11

1

Question 12

What is the area of a triangle with a base of 8 feet and a height of 4 feet?

Answer 12

16 square feet

Question 13

If x + 3y = 7 and y = 2, then x equals

Answer 13

1

Question 14

What is the value of 3x + 5y, when x = 12 and y = 4?

Answer 14

56

Question 15

If 25 = 4x - 7, then x =

Answer 15

8

Question 16

what is 12/50 in its simplest form?

Answer 16

6/25

Question 17

16 = x/20, then x =

Answer 17

320

Question 18

What is 5x times (3x^2 - 5)?

Answer 18

15x^3 - 25x

Question 19

3(x + 6) = 39, then x=

Answer 19

7

Question 20

If 2 = x - 3, then x equals

Answer 20

5

Question 21

if 4x^2= 16, then x=?

Answer 21

32

Question 22

What is the area of the rectangle?

Answer 22

15

Question 23

Square root of 9

Answer 23

3

Question 24

what is 3a^2 + a^2 added to a+6?

Answer 24

5a^2 + 6 + a

Question 25

-25-8 =

potenially -25+8=

Answer 25

-33 or 17

if it does says -8 it’s -33 otherwise it’s 17

Question 26

Simplify the ratio 12:18

Answer 26

2:3

Question 27

What is the product of (a - 1) and (2a + 2)?

Answer 27

2(a^2 - 1)

Question 28

If 4/3 x 3/4 = 5k, then k=

Answer 28

1/5

Question 29

In the formula C=5/9(F - 32), if C= 35, then F =?

Answer 29

95

Question 30

the reciprocal of 7 is

Answer 30

1/7

Question 31

What is the area of a parallelogram if its length is x+4 and its height is x+3?

Answer 31

X^2+7x+12

using foil is how you get this answer

Question 32

36. Graphs of the following equations are straight lines EXCEPT

A 3x + 2y = 8

B y = x / 2 - 5

C x = 4y

D y = x ^ 2 + 3

Answer 32

y=X^2+3

Question 33

x/4>12

Answer 33

x>48