AnswersAlgebra III AComplex Numbers

Complex Numbers Answers

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1
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Which of the following describes the relationship between b and c?

A
c is 1.5 times that of b.
B
c is double b.
C
c is the square of half of b.
D
c is the square of b.
2
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x + =

A
1/4
B
1/2
C
2/3
3

x2 + x +

Question illustration
Answer:

1/16

4

Choose the solutions to the quadratic equationx2 – 8x – 9 = 0.

A
–21
B
–1
C
9
D
29
5

Choose the solutions to the quadratic equationx2 – 8x – 9 = 0.

A
–21
B
–1
C
9
D
29
6

Question text not available

Answer:

33/16

7

Choose the solution to the equation.

A
Option
B
Option
C
Option
8

Given 2x² = -8, x is .

A
-2
B
2
C
2i or -2i
D
4i or -4i
9

Solve (x – 3)2 = 49. Select the values of x.

A
–46
B
-4
C
10
D
52
10

Which of the following describes the relationship between b and c?

A
c is 1.5 times that of b.
B
c is double b.
C
c is the square of half of b.
D
c is the square of b.
11

x2 – 10x +

Answer:

25

12

Given 2x² = -8, x is .

A
-2
B
2
C
2i or -2i
D
4i or -4i
13

Factor the perfect-square trinomial on the left side of the equation.(x + )² =

Question illustration
Answer:

1/4

14

x2 +

Answer:

-8

15

Choose an equation that would be used to solve 0 = -x2 + 10x – 8

A
(x + 25)2 = –8
B
(x – 5)2 = 17
C
(x – 10)2 = 25
16

Question text not available

Answer:

1/2

17

Question text not available

Answer:

1/16

18

Apply the square root property of equality.

Question illustration
Answer:

2/3

19

The trestle meets the ground at units and units.

Answer:

0.9

20

x2 + x + 36

Answer:

12

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