Question

Which of the following is not an irrational number? *

1 point

A) √5

B) √3

C) √9

D) √7

4) If the decimal representation of a number is non-terminating, non-repeating then the number is a/an ________number*

1 point

A) natural

B) whole

C) rational

D) irrational

5) If x + y = 8 and xy = 15, then the value of x^2 + y^2 is____________ *

1 point

A) 34

B) 23

C) 289

D) 64

6) If (x + 6) (x – 7) = x^2 + px + q, then the value of p and are ______ *

1 point

A) 6 and -7

B) -7 and 6

C) -1 and - 42

D) - 42 and -1

7) The factors of x^3 + y^3 are ____________ *

1 point

A) (x+ y) and (x^2 – xy + y^2)

B) (x+ y) and (x^2 + xy + y^2)

C) (x – y) and (x^2 – xy + y2)

D) (x– y) and (x^2 – xy –y^2)

8) The factors of x^2 + 14x + 40 are________ *

1 point

A) (x + 4) and (x + 10)

B) (x - 4) and (x - 10)

C) (-x + 4) and (-x + 10)

D) (x + 4) and (x - 10)

9) Simplified form of √45 - 3√20 + 4√5 is__________ *

1 point

A) √5

B) √30

C) -3√20

D) 10

10) 4x^2 + 9y^2 + 16z^2 + 12xy – 24yz – 16xz is equal to_____ *

1 point

A) (2x+3y+4z)^2

B) (2x+3y-4z)^2

C) (2x-3y+4z)^2

D) (2x-3y-4z)^2


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Answer 1

Answer:

1 -C) √9

4-D) irrational

5-A) 34

9-A) √5

Step-by-step explanation:

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