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1/14/14 Unit 2 Exam

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Online Homework System Assignment Worksheet

1/14/14 - 10:11 AM

Name: ____________________________ Class: Post University - College Algebra

(MAT120.37, MOD 3) (1qaq3b2)

Class #: ____________________________ Section #: ____________________________

Instructor:Maple T.A. Administrator Assignment:Unit 2 Exam

Question 1: (1 point)

Write the polynomial in standard form, identify the degree of the polynomial, identify the leading coefficient, and then

classify it according to its degree and number of terms.

(a)

Write the polynomial in standard form.

(a)

(b)

(c)

(d)

(b)

The degree of the polynomial is ____________.

The leading coefficient is ____________.

This polynomial is a __________ __________.

Question 2: (1 point)

Simplify.

−2b2

−2 + + 1b2 b

−2 +b2 b

−2 + b2

−2b2

(7 + (3a + 6) − ) − (7a − (4 − 6 + 5a) − 5(a + 6))a4 a2 a3 a2

1/14/14 Unit 2 Exam

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Enter the expression in simplest form.

Question 3: (1 point)

Simplify.

Enter the expression in simplest form.

Question 4: (1 point)

Simplify.

Enter the expression in simplest form.

Question 5: (1 point)

Simplify.

(7 + (3a + 6) − ) − (7a − (4 − 6 + 5a) − 5(a + 6))a4 a2 a3 a2

(5 − 7) (6 + 2)x2 x2

(5 + 3pq − 6 )p2 q22

1/14/14 Unit 2 Exam

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(a)

(b)

(c)

(d)

Question 6: (1 point)

Factor completely.

Enter the factors. Enter the original expression if it cannot be factored.

Question 7: (1 point)

Factor completely .

Enter the factors as a product of two binomials. Enter the original expression if it cannot be factored.

( z − 8 )2√ P 2 3

2 − 48 + 192 z − 5122√ z3 z2 P 2 2√ P 4 P 6

2 − 48 − 192 z − 5122√ z3 z2 P 2 2√ P 4 P 6

2 − 48 z − 192 z − 5122√ z3 P 2 2√ P 4 P 6

2 − 48 − 192 z + 5122√ z3 z2 P 2 2√ P 4 P 6

15 (y + 5) − 30 (−5 − y) − 10x (y + 5)x3 x2

4 + 3 − 32y − 24y3 y2

1/14/14 Unit 2 Exam

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Question 8: (1 point)

Factor completely.

Enter the factors as a product of two binomials. Enter the original expression if it cannot be factored.

Question 9: (1 point)

Factor completely.

Enter the factors as a product of two binomials. Enter the original expression if it cannot be factored.

Question 10: (1 point)

Factor completely.

Enter the factors. Enter the original expression if it cannot be factored.

−3x−10x2

5 −31y−28y2

24 −34w + 12w2

24 −34w + 122

1/14/14 Unit 2 Exam

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Question 11: (1 point)

Factor completely.

Enter the factors. Enter the original expression if it cannot be factored.

Question 12: (1 point)

Factor completely.

Enter the factors. Enter the original expression if it cannot be factored.

Question 13: (1 point)

Factor completely.

Enter the factors as a product of two binomials. Enter the original expression if it cannot be factored.

24 −34w + 12w2

4 − 12y + 9y2

9 + 24st + 16s2 t2

4 − 9p10 w2

4 − 910 2

1/14/14 Unit 2 Exam

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Question 14: (1 point)

Factor completely.

Enter the factors as a product of two binomials. Enter the original expression if it cannot be factored.

Question 15: (1 point)

Factor completely.

Enter the factors. Enter the original expression if it cannot be factored.

Question 16: (1 point)

Factor completely.

Enter the factors. Enter the original expression if it cannot be factored.

4 − 9p10 w2

4 + 9p10 w2

125 − 27s3

125 − 8x3z6 y3

1/14/14 Unit 2 Exam

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Question 17: (1 point)

Solve.

If there are multiple solutions, separate the answers with semicolons (;).

__________

Question 18: (1 point)

Solve.

If there are multiple solutions, separate the answers with semicolons (;).

__________

Question 19: (1 point)

Find the discriminant and identify the best description of the equation's root(s).

(a) 1 real solution

(b)2 complex solutions

125 − 8x3z6 y3

= −3x+4x2

x =

6 +11x = 2x2

x =

2 −5 = −2xx2

1/14/14 Unit 2 Exam

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(d) 1 complex solution

(e) 1 real and 1 complex root

Question 20: (1 point)

At a tennis club, a ft2 rectangular area is partitioned into three rectangular courts of equal size. A total of

feet of fencing is used to enclose the three courts, including the interior sides.

What are the possible dimensions, in feet, of the entire rectangular area?

Select all that apply.

(a) feet by feet

(b) feet by feet

(d) feet by feet

(e) feet by feet

Question 21: (1 point)

16,500 860

330 50

25 660

110 150

50 165

100 165

1/14/14 Unit 2 Exam

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A ladder of length feet is positioned against a wall such that the bottom is feet away from a wall. The

distance between the floor and the top of the ladder is feet.

Find the length, in feet, of the ladder.

Assume that a right angle is formed by the wall and the floor.

The length of the ladder is ____________feet.

Question 22: (1 point)

A small rock sits on the edge of a tall building. A strong wind blows the rock off the edge. The distance, in feet, between

the rock and the ground seconds after the rock leaves the edge is given by

If the answer is not an integer, enter it as a decimal. Round to the nearest hundredth, if needed.

How many seconds after the rock leaves the edge is it feet from the ground?

____________ seconds

How many seconds after the rock leaves the edge does it hit the ground?

____________ seconds

2x + 2 x − 2 2x

t d = −16 − 8t + 500.t2

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