Name MATH0021Final Exam REVIEW UPDATED 8/18 MULTIPLE … · Name_____ MATH0021Final Exam REVIEW...

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Name______________________________________________________ MATH0021Final Exam REVIEW UPDATED 8/18 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the equation. 1) 6 x - ( 3 x - 1) = 2 1) A) - 1 3 B) - 1 9 C) 1 9 D) 1 3 2) 5 6 x + 4 3 = 2 3 x 2) A) 12 B) 8 C) - 8 D) - 12 3) 3(y - 2) 5 = 1 - 3y 3) A) 11 6 B) - 11 18 C) 7 6 D) 11 18 4) - 6.4 m - 1.9 + 0.2 m = - 2.1 - 6.2 m + 0.2 4) A) 0 B) 0.2 C) all real numbers D) no solution Solve. 5) A 7 - ft. board is cut into 2 pieces so that one piece is 3 feet longer than 3 times the shorter piece. If the shorter piece is x feet long, find the lengths of both pieces. 5) A) shorter piece: 18 ft; longer piece: 21 ft B) shorter piece: 3.5 ft; longer piece: 21 ft C) shorter piece: 9 ft; longer piece: 24 ft D) shorter piece: 1 ft; longer piece: 6 ft 6) Center City East Parking Garage has a capacity of 255 cars more than Center City West Parking Garage. If the combined capacity for the two garages is 1225 cars, find the capacity for each garage. 6) A) Center City East: 750 cars Center City West: 475 cars B) Center City East: 740 cars Center City West: 485 cars C) Center City East: 485 cars Center City West: 740 cars D) Center City East: 475 cars Center City West: 750 cars Solve the equation for the indicated variable. 7) A = 1 2 h(B + b) for B 7) A) B = 2A - b h h B) B = A - b h h C) B = 2A + b h h D) B = 2A - b h 8) A = P + PRT for T 8) A) T = P R A - P B) T = A R C) T = A - P P R D) T = P - A P R 1

Transcript of Name MATH0021Final Exam REVIEW UPDATED 8/18 MULTIPLE … · Name_____ MATH0021Final Exam REVIEW...

Page 1: Name MATH0021Final Exam REVIEW UPDATED 8/18 MULTIPLE … · Name_____ MATH0021Final Exam REVIEW UPDATED 8/18 MULTIPLE CHOICE. Choose the one alternative that best completes the statement

Name______________________________________________________ MATH0021Final Exam REVIEW UPDATED 8/18

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Solve the equation.1) 6x - (3x - 1) = 2 1)

A) -13

B) -19

C) 19

D) 13

2) 56

x + 43

=23

x 2)

A) 12 B) 8 C) -8 D) -12

3) 3(y - 2)5

= 1 - 3y 3)

A) 116

B) -1118

C) 76

D) 1118

4) -6.4m - 1.9 + 0.2m = -2.1 - 6.2m + 0.2 4)A) 0 B) 0.2C) all real numbers D) no solution

Solve.5) A 7-ft. board is cut into 2 pieces so that one piece is 3 feet longer than 3 times the shorter piece. If

the shorter piece is x feet long, find the lengths of both pieces.5)

A) shorter piece: 18 ft; longer piece: 21 ft B) shorter piece: 3.5 ft; longer piece: 21 ftC) shorter piece: 9 ft; longer piece: 24 ft D) shorter piece: 1 ft; longer piece: 6 ft

6) Center City East Parking Garage has a capacity of 255 cars more than Center City West ParkingGarage. If the combined capacity for the two garages is 1225 cars, find the capacity for each garage.

6)

A) Center City East: 750 carsCenter City West: 475 cars

B) Center City East: 740 carsCenter City West: 485 cars

C) Center City East: 485 carsCenter City West: 740 cars

D) Center City East: 475 carsCenter City West: 750 cars

Solve the equation for the indicated variable.

7) A = 12

h(B + b) for B 7)

A) B =2A - bh

hB) B =

A - bhh

C) B =2A + bh

hD) B = 2A - bh

8) A = P + PRT for T 8)

A) T =PR

A - PB) T =

AR

C) T =A - P

PRD) T =

P - APR

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Solve the inequality. Graph the solution set and write it in interval notation.9) -16x - 32 -4(3x + 3) 9)

A) [-5, )

B) (- , -5]

C) (- , -5)

D) (-5, )

10) 6x + 8 + 9x < 4 + 13x + 4 10)

A) (8, ) B) (- , 0)

C) (- , 8] D) (0, )

Determine whether the ordered pair is a solution of the given linear equation.11) 5x - 3y = -5; (0, -1) 11)

A) yes B) no

12) x - 3y = 6; (0, -2) 12)A) no B) yes

Identify the intercepts.13) 13)

A) (5, 0), (-5, 0), (0, 8), (0, -8) B) (0, 8), (0, -8)C) (8, 0), (-8, 0), (0, 5), (0, -5) D) (5, 0), (-5, 0)

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14) 14)

A) (5, 0), (-5, 0), (0, 0) B) (0, -5)C) (5, 0), (-5, 0), (0, -5) D) (5, 0), (-5, 0)

Find the slope of the line.15) 7x + 8y = -11 15)

A) m = -78

B) m = -87

C) m = -7 D) m = -56

16) y = -3 16)A) m = 1 B) m = -3C) m = 0 D) undefined slope

17) x = 5 17)A) m = 0 B) m = - 5C) m = 5 D) undefined slope

18) -x + 11y = 110 18)

A) m = -111

B) m = 11 C) m = 111

D) m = -1

Solve.19) To the nearest dollar, the average tuition at a public four-year college was $3024 in 1998 and $3414

in 1999. Find the rate of change in tuition (to the nearest dollar per year).19)

A) tuition increased $407 per year B) tuition decreased $390 per yearC) tuition increased $401 per year D) tuition increased $390 per year

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Graph the linear equation by finding and plotting its intercepts.20) -x + 4y = -4 20)

A) B)

C) D)

21) -5x - y = - 10 21)A) B)

C) D)

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Graph the linear equation.22) y - 4 = 0 22)

A) B)

C) D)

23) x + 2 = 0 23)A) B)

C) D)

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Use the slope-intercept form to graph the equation.

24) y = -12

x + 4 24)

A) B)

C) D)

25) y = -3x - 3 25)A) B)

C) D)

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26) Determine the intercepts of the graph of 4x-y=8. 26)A) (0, -8), (2, 0) B) (0 , 2), (-8, 0) C) (4, 8), (-1, 8) D) (-1, 8), (0-8)

Find an equation of the line. Write the equation using function notation.27) Through (8, 5); parallel to f(x) = 5x - 6 27)

A) f(x) = 5x + 45 B) f(x) = 5x - 35 C) f(x) = 5x + 5 D) f(x) = -5x - 35

28) Through (2, 4); perpendicular to f(x) = -3x + 4 28)

A) f(x) = -13

x + 103

B) f(x) = 13

x + 103

C) f(x) = 3x + 103

D) f(x) = -3x + 103

Find the domain and the range of the relation.29) {(6, 4), (-6, 0), (-5, -5), (11, -6)} 29)

A) domain: {-6, -5, 6, 11} ; range: {0, 4}B) domain: {-6, -5, 6, 11} ; range: {-6, -5, 0, 4}C) domain: {-5, 0, 6, 11} ; range: {-6, -5, 4, 11}D) domain: {-6, 0, 4, 6} ; range: {-6, -5, 11}

Evaluate the function.30) Find f(-3) when f(x) = 3x2 + 3x - 6. 30)

A) 27 B) 12 C) 30 D) 24

31) Find f(4) when f(x) = x2 + 4x - 3. 31)A) 35 B) 3 C) -3 D) 29

Solve.32) The distance that an object falls when it is dropped is directly proportional to the square of the

amount of time since it was dropped. An object falls 128 feet in 2 seconds. Find the distance theobject falls in 5 seconds.

32)

A) 10 feet B) 800 feet C) 320 feet D) 160 feet

33) If y varies directly as the square root of x and y=32 when x=4, find y when x=49. 33)A) 112 B) 16 C) 81 D) 7

Solve the system of equations by the addition method.

34) x - 7y = -66-6x - 8y = -54

34)

A) (-3, 9) B) (-4, 10) C) no solution D) (3, 10)

Solve the system of equations by the substitution method.

35) x + 5y = -1-4x + 4y = -44

35)

A) (8, -1) B) no solution C) (-9, -1) D) (9, -2)

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Simplify the expression. Write using positive exponents only.36) -8y0 36)

A) 1 B) -8 C) -7 D) 0

37) -8x0+x-3 37)

A) -8 + 1x3 B) -1 + 1

x3 C) -8 + x3 D) -8

38) 2y2

10x-5

238)

A) x10y4

25B) x10

25y4C) 25

x10y4D) 25

x4y3

39) (z7x7)-3 39)

A) 1(zx)42

B) 1z21x21

C) z4x4 D) z10x10

40) -7ym2n-2ym5n

40)

A) 5m3

B) 15m3

C) 5y2n2

m3D) 7

2m3

Perform the indicated operation.41) (2n5 - 15n4 - 9) - (5n5 - 9n4 - 8) 41)

A) -3n5 - 6n4 - 17 B) -3n5 - 6n4 - 1C) -10n9 D) -3n5 - 10n4 - 17

42) (3x2 - 8x + 5) - (x2 - 5x + 2) + (4x2 + 5) 42)A) 6x2 - 3x + 8 B) -2x2 - 13x + 12 C) 6x2 + 3x + 8 D) 6x2 - 3x + 12

43) (b - 5)(b2 + 5b + 3) 43)A) b3 - 10b2 - 22b - 15 B) b3 + 10b2 + 22b + 15C) b3 + 28b + 15 D) b3 - 22b - 15

44) (x + 1)(x2 - x + 1) 44)A) x3 + 2x2 + 2x + 1 B) x3 - 2x2 - 2x - 1C) x3 + 1 D) x3 - 1

45) (9z + 11)2 45)A) 81z2 + 198z + 121 B) 9z2 + 198z + 121C) 81z2 + 121 D) 9z2 + 121

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Find the quotient using long division.

46) p2 + 5p - 10p + 7

46)

A) p - 2 +4

p + 7B) p - 4 +

2p + 7

C) p - 2 D) p + 2 +4

p + 7

47) 5m2 + 5m - 10m + 2

47)

A) 5m + 5 B) 5m - 5 +7

m - 5C) 5m - 5 D) m - 5

Factor COMPLETELY!!! Write "prime" if the polynomial cannot be factored.48) 6x2 - 10x + 15x - 25 48)

A) (2x + 5)(3x - 5) B) (6x - 5)(x + 5) C) (6x + 5)(x - 5) D) (2x - 5)(3x + 5)

49) 2x3 - 3x2 -8 x + 12 49)A) (x2 - 4)(2x-3) B) (x2 +4)(2x + 3)C) (2x-3)(x + 2)(x-2) D) (x2 + 4)(2x -3)

50) 9z2 + 6z - 8 50)A) (3z + 4)(3z - 2) B) (9z + 4)(z - 2) C) prime D) (3z - 4)(3z + 2)

51) 8x2 - 24xy - 32y2 51)A) prime B) 8(x - y)(x + 4y)C) (8x - 8y)(x + 4y) D) 8(x + y)(x - 4y)

52) t3 + 729 52)A) (t - 729)(t + 1)(t - 1) B) (t + 9)(t2 - 9t + 81)C) (t + 9)(t2 + 81) D) (t - 9)(t2 + 9t + 81)

53) 108x3 + 500 53)A) 4(27x3 + 125) B) 4(3x + 5)(9x2 + 25)C) 4(3x - 5)(9x2 + 15x + 25) D) 4(3x + 5)(9x2 - 15x + 25)

Solve the equation.54) x2 - 36 = 35x 54)

A) 1, -36 B) -6, -6 C) -1, 36 D) -6, 6

55) 16x2 - 11 = 40x 55)

A) -114

, 14

B) 1116

, - 116

C) -116

, - 58

D) 114

, - 14

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Solve.56) The perimeter of the quadrilateral is 130 inches. Find the lengths of the sides. 56)

A) 14 in., 25 in., 108 in., 7 in. B) 3 in., 3 in., -2 in., -4 in.C) 13 in., 23 in., 88 in., 6 in. D) 12 in., 24 in., 88 in., 6 in.

57) A triangle is 6 cm wider than it is tall. The area is 140 cm2. Find the width (length of the base).

h + 6

57)

A) 6 cm B) 20 cm C) 14 cm D) 21 cm

Perform the indicated operation and simplify, if possible.

58) x2 - 497y

÷7 - x14xy

58)

A) -2x(x + 7) B) -2x(x - 7) C) 2x(x + 7) D) 2x(x - 7)

59) x + 63 - x

÷x2 - 4x - 12x2 - 9x + 18

59)

A) x - 6x + 2

B) -x + 6x + 2

C) -x - 6x + 2

D) -(x + 6)(x - 6)

(x - 3)2

60) 4x2+x -2

+6

x-160)

A) -6x -8(x -1)(x +2)

B) x + 2 C) 6x +16(x -1)(x +2)

D) x+1(x +2)(x -1)

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61) 3x2 - 3x + 2

+7

x2 - 161)

A) 42x - 11(x - 1)(x + 1)(x - 2)

B) 10x - 11(x - 1)(x + 1)(x - 2)

C) 11x - 10(x - 1)(x + 1)(x - 2)

D) 10x - 11(x - 1)(x - 2)

Solve the equation. You MUST check your proposed solutions.

62) 1 + 1x

=20x2

62)

A) -15

, 14

B) 5, 4 C) -5, 4 D) 5, -4

63) xx + 2

+2

x2 + 5x + 6=

5x + 3

63)

A) 0 B) 4, -2 C) 4 D) no solution

Solve the compound inequality. Graph the solution set.64) 0 -2x + 5< 3 64)

A) - 1, -5/2 B) 1, 5/2 C) -1, 32

D) -5/2 ,1

Simplify.

65)4

81x8y16 65)A) 9x4y2 B) 3x2y4

C) 4.264x2y4 D) not a real number

Simplify. Write your answer using radicals.66) (p1/2 + 5) (p1/2 - 2) 66)

A)4

p + 3 p - 10 B) p + 3 p - 10

C) p - 10 D) 3p - 10

Simplify.67) ( 11 - 3)2 67)

A) 8 - 2 33 B) 14 - 2 33 C) 14 + 2 33 D) 33 - 2 33

68) (8 7 + 8)(5 7 + 3) 68)A) 64 7 + 24 B) 24 + 40 72 + 24 7

C) 88 7 D) 304 + 64 7

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69) 114

x7 - 3x4

x3 69)

A) 8x4

x3 B) 114

x7 - 3x4

x3

C) 8x4

x7 D) 144

x3

70) 3 12 - 4 108 + 2 48 70)A) -52 3 B) 52 3 C) -10 3 D) 3 3

Simplify the radical expression. Assume that all variables represent positive real numbers.

71) 3 -3a5 b6

375a271)

A) -a b2

5B) -5a b2 C) a b2

5D) Not real

72)3

-27a11b13 72)

A) 3 a13b11 B) 3a2b 3

a3b4 C) 3ab 3

a5b4 D) -3a3b43

a2b

73) 56x5y6

2y473)

A) 2x4y2 7xy B) 4x2y 7x C) 2x2y 7x D) 28xy x

Rationalize the denominator.

74) 76x

74)

A) 42 6x6x

B) 6x6x

C) 42 xx

D) 7 6x6x

Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.

75) - 4x + 9

75)

A) 36 + 4 xx + 81

B) 36 - 4 xx - 81

C) 36 + 4 xx - 81

D) 36 - 4 xx2 - 81

Solve. You MUST check all proposed solutions.76) x + 3 = 2 76)

A) 4 B) 1 C) -3 D)

Solve.77) x - 22x + 33 = -7 77)

A) -3 B) 2 C) 4 D) -4

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Use the Pythagorean theorem to find the unknown side of the right triangle.78)

9

10

78)

A) 19 B) 181 C) 19 D) 181

79)

8

7

79)

A) 57 B) 71 C) 57 D) 15

Perform the indicated operation. Write the result in the form a + bi.80) (5 + 4i)(5 - 3i) 80)

A) 25 - 12i2 B) 25 + 0i C) 25 + 5i - 12i2 D) 37 + 5i

81) 7i (8 + i) 81)A) 63 B) 63i C) 7 - 56i D) -7 + 56i

82) 6 + 4i9 + 5i

82)

A) 3453

-6653

i B) 3756

+356

i C) 1728

+356

i D) 3753

+353

i

83) 8 + 9i8 - 9i

83)

A) 1 + 144145

i B) 1 - 14417

i C) -14517

+14417

i D) -17145

+144145

i

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Answer KeyTestname: MATH0021 FE REIVEW FALL2018

1) D2) C3) D4) C5) D6) B7) A8) C9) A

10) B11) B12) B13) A14) C15) A16) C17) D18) C19) D20) A21) C22) D23) D24) B25) C26) A27) B28) B29) B30) B31) D32) B33) A34) A35) D36) B37) A38) A39) B40) D41) B42) A43) D44) C45) A46) A47) C48) A49) C50) A

51) D52) B53) D54) C55) D56) C57) B58) A59) B60) C61) B62) C63) C64) B65) B66) B67) B68) D69) A70) C71) A72) D73) C74) D75) B76) B77) C78) D79) C80) D81) D82) D83) D

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