Algebra Test 4

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Algebra Test 4

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Question 1/30
1 / -0

Directions For Questions

5

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x 5 = 10?

Correct

Wrong

Skipped
A
7

Correct

Wrong

Skipped
B
6

Correct

Wrong

Skipped
C
5

Correct

Wrong

Skipped
D
4

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Solutions
5
Question 2/30
1 / -0

Directions For Questions

18

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(4

Correct

Wrong

Skipped
A
16

Correct

Wrong

Skipped
B
19

Correct

Wrong

Skipped
C
18

Correct

Wrong

Skipped
D
20

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Solutions
18
Question 3/30
1 / -0

Directions For Questions

3/8

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There are four hotels in a town. If 3 men check into the hotels in a day then what is the probability that each checks into a different hotel?

Correct

Wrong

Skipped
A
3/8

Correct

Wrong

Skipped
B
1/8

Correct

Wrong

Skipped
C
5/9

Correct

Wrong

Skipped
D
6/7

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Solutions
3/8
Question 4/30
1 / -0

Directions For Questions

magnitude

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A scalar quantity has __________.?

Correct

Wrong

Skipped
A
direction

Correct

Wrong

Skipped
B
magnitude

Correct

Wrong

Skipped
C
both (I) and (II)

Correct

Wrong

Skipped
D
none of these

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Solutions
magnitude
Question 5/30
1 / -0

Directions For Questions

x=2.50 or x=3.50

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What are the possible values of x in |12?4x|=2 ?

Correct

Wrong

Skipped
A
x=2.50 or x=3.50

Correct

Wrong

Skipped
B
3.5>x>2.5

Correct

Wrong

Skipped
C
-3.50>x>-2.50

Correct

Wrong

Skipped
D
x=-2.50 or x=-3.50

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Solutions
x=2.50 or x=3.50
Question 6/30
1 / -0

Directions For Questions

a•b

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If a and b are both odd integers, which of the following MUST also be an odd integer?

Correct

Wrong

Skipped
A
a/b

Correct

Wrong

Skipped
B
a•b

Correct

Wrong

Skipped
C
a b

Correct

Wrong

Skipped
D
a - b

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Solutions
a•b
Question 7/30
1 / -0

Directions For Questions

x=-2 or x=2

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What is the conclusion of the statement in the box below? If x2=4, then x=-2 or x=2.

Correct

Wrong

Skipped
A
x=-2

Correct

Wrong

Skipped
B
x=2

Correct

Wrong

Skipped
C
x=-2 or x=2

Correct

Wrong

Skipped
D
x2 =4

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Solutions
x=-2 or x=2
Question 8/30
1 / -0

Directions For Questions

x4- 2x 3

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Divide: (4x

Correct

Wrong

Skipped
A
x4- 2x 3

Correct

Wrong

Skipped
B
x4 2x 3x

Correct

Wrong

Skipped
C
x8- 2x5 3x2

Correct

Wrong

Skipped
D
x4- 2x 3x

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Solutions
x4- 2x 3
Question 9/30
1 / -0

Directions For Questions

50

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Simplify 1 (2 5)

Correct

Wrong

Skipped
A
50

Correct

Wrong

Skipped
B
25

Correct

Wrong

Skipped
C
60

Correct

Wrong

Skipped
D
31

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Solutions
50
Question 10/30
1 / -0

Directions For Questions

15

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Evaluate 3(x - y) if x = 3 and y = -2?

Correct

Wrong

Skipped
A
15

Correct

Wrong

Skipped
B
7

Correct

Wrong

Skipped
C
8

Correct

Wrong

Skipped
D
3

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Solutions
15
Question 11/30
1 / -0

Directions For Questions

2/3

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If x is chosen at random from the set {1,2,3,4} and y is to be chosen at random from the set {5,6,7}, what is the probability that xy will be even?

Correct

Wrong

Skipped
A
2/3

Correct

Wrong

Skipped
B
1/2

Correct

Wrong

Skipped
C
1/6

Correct

Wrong

Skipped
D
5/6

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Solutions
2/3
Question 12/30
1 / -0

Directions For Questions

39

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3 22(1 8) =?

Correct

Wrong

Skipped
A
36

Correct

Wrong

Skipped
B
42

Correct

Wrong

Skipped
C
40

Correct

Wrong

Skipped
D
39

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Solutions
39
Question 13/30
1 / -0

Directions For Questions

all of these

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Which of the following is/are scalar quantity(s)?

Correct

Wrong

Skipped
A
temperature

Correct

Wrong

Skipped
B
density

Correct

Wrong

Skipped
C
distance

Correct

Wrong

Skipped
D
all of these

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Solutions
all of these
Question 14/30
1 / -0

Directions For Questions

0 and 0.5

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Something that is unlikely to happen has a probability of between?

Correct

Wrong

Skipped
A
0.5 and 1

Correct

Wrong

Skipped
B
1 and 2

Correct

Wrong

Skipped
C
0 and 0.5

Correct

Wrong

Skipped
D
0 and 1

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Solutions
0 and 0.5
Question 15/30
1 / -0

Directions For Questions

20

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30 - 3 * 4 2 =?

Correct

Wrong

Skipped
A
12

Correct

Wrong

Skipped
B
16

Correct

Wrong

Skipped
C
20

Correct

Wrong

Skipped
D
22

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Solutions
20
Question 16/30
1 / -0

Directions For Questions

x > -7

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7 - 2x < 21 ?

Correct

Wrong

Skipped
A
x > -7

Correct

Wrong

Skipped
B
x < -7

Correct

Wrong

Skipped
C
x > 7

Correct

Wrong

Skipped
D
x < 7

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Solutions
x > -7
Question 17/30
1 / -0

Directions For Questions

a2 b3

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Write using exponents: (a)(a) (b)(b)(b)?

Correct

Wrong

Skipped
A
a2 b3

Correct

Wrong

Skipped
B
(a b)5

Correct

Wrong

Skipped
C
2a 3b

Correct

Wrong

Skipped
D
a2b3

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Solutions
a2 b3
Question 18/30
1 / -0

Directions For Questions

22

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6 4 × 4?

Correct

Wrong

Skipped
A
18

Correct

Wrong

Skipped
B
24

Correct

Wrong

Skipped
C
20

Correct

Wrong

Skipped
D
22

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Solutions
22
Question 19/30
1 / -0

Directions For Questions

-6

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One of the roots of the equation x

Correct

Wrong

Skipped
A
-6

Correct

Wrong

Skipped
B
-21

Correct

Wrong

Skipped
C
6

Correct

Wrong

Skipped
D
15

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Solutions
-6
Question 20/30
1 / -0

Directions For Questions

198/20825

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Four cards are drawn at random from a pack of 52 plating cards. Find the probability of getting all the four cards of the same suit.?

Correct

Wrong

Skipped
A
198/20825

Correct

Wrong

Skipped
B
178/20825

Correct

Wrong

Skipped
C
13/270725

Correct

Wrong

Skipped
D
91/190

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Solutions
198/20825
Question 21/30
1 / -0

Directions For Questions

-2x - 6y

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Combine like terms: 4x - 5y - 6x - y?

Correct

Wrong

Skipped
A
-2x - 6y

Correct

Wrong

Skipped
B
-7x - y

Correct

Wrong

Skipped
C
-2x - 4y

Correct

Wrong

Skipped
D
10x 4y

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Solutions
-2x - 6y
Question 22/30
1 / -0

Directions For Questions

1/2

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A box contains 100 balls, numbered from 1 to 100. If three balls are selected at random and with replacement from the box, what is the probability that the sum of the three numbers on the balls selected from the box will be odd?

Correct

Wrong

Skipped
A
3/8

Correct

Wrong

Skipped
B
1/2

Correct

Wrong

Skipped
C
1/8

Correct

Wrong

Skipped
D
3/4

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Solutions
1/2
Question 23/30
1 / -0

Directions For Questions

16

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20 ÷ (12 - 2) X 32 - 2=?

Correct

Wrong

Skipped
A
16

Correct

Wrong

Skipped
B
12

Correct

Wrong

Skipped
C
17

Correct

Wrong

Skipped
D
14

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Solutions
16
Question 24/30
1 / -0

Directions For Questions

2c

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The expression (3c - 3d) - (c - 3d) when simplified is?

Correct

Wrong

Skipped
A
2c

Correct

Wrong

Skipped
B
4c

Correct

Wrong

Skipped
C
2c - 6d

Correct

Wrong

Skipped
D
4c - 6d

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Solutions
2c
Question 25/30
1 / -0

Directions For Questions

All high school band members are good musicians

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Which of the following is a valid conclusion to the statement “If a student is a high school band member, then the student is a good musician”?

Correct

Wrong

Skipped
A
All high school band members are good musicians

Correct

Wrong

Skipped
B
All students are good musicians.

Correct

Wrong

Skipped
C
A student is a high school band member.

Correct

Wrong

Skipped
D
All good musicians are high school band members.

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Solutions
All high school band members are good musicians
Question 26/30
1 / -0

Directions For Questions

8

...view full instructions

16 - n = 8?

Correct

Wrong

Skipped
A
10

Correct

Wrong

Skipped
B
8

Correct

Wrong

Skipped
C
7

Correct

Wrong

Skipped
D
9

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Solutions
8
Question 27/30
1 / -0

Directions For Questions

1, -4

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Solve for x: x

Correct

Wrong

Skipped
A
2,-2

Correct

Wrong

Skipped
B
-1, 4

Correct

Wrong

Skipped
C
3,-1

Correct

Wrong

Skipped
D
1, -4

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Solutions
1, -4
Question 28/30
1 / -0

Directions For Questions

9/20

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Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?

Correct

Wrong

Skipped
A
9/20

Correct

Wrong

Skipped
B
8/15

Correct

Wrong

Skipped
C
2/5

Correct

Wrong

Skipped
D
1/2

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Solutions
9/20
Question 29/30
1 / -0

Directions For Questions

9

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36 ÷ 4(5 - 2) 6 =?

Correct

Wrong

Skipped
A
9

Correct

Wrong

Skipped
B
6

Correct

Wrong

Skipped
C
12

Correct

Wrong

Skipped
D
3

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Solutions
9
Question 30/30
1 / -0

Directions For Questions

5

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The chart below shows an expression evaluated for four different values of x. x x2 x 5 1 7 2 11 6 47 7 61 Josiah concluded that for all positive values of x, x2 x 5 produces a prime number. Which value of x serves as a counter example to prove Josiah’s conclusion false?

Correct

Wrong

Skipped
A
16

Correct

Wrong

Skipped
B
21

Correct

Wrong

Skipped
C
5

Correct

Wrong

Skipped
D
11

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Solutions
5

Question 1/30

7

6

5

4

Question 2/30

16

19

18

20

Question 3/30

3/8

1/8

5/9

6/7

Question 4/30

direction

magnitude

both (I) and (II)

none of these

Question 5/30

x=2.50 or x=3.50

3.5>x>2.5

-3.50>x>-2.50

x=-2.50 or x=-3.50

Question 6/30

a/b

a•b

a b

a - b

Question 7/30

x=-2

x=2

x=-2 or x=2

x2 =4

Question 8/30

x4- 2x 3

x4 2x 3x

x8- 2x5 3x2

x4- 2x 3x

Question 9/30

50

25

60

31

Question 10/30

15

7

8

3

Question 11/30

2/3

1/2

1/6

5/6

Question 12/30

36

42

40

39

Question 13/30

temperature

density

distance

all of these

Question 14/30

0.5 and 1

1 and 2

0 and 0.5

0 and 1

Question 15/30

12

16

20

22

Question 16/30

x > -7

x < -7

x > 7

x < 7