Exam Review Mat 171 Dubrowsky

• E) None of these

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Find functions f and g so that h(x) = (fog)(x). where h(x) = |2x + 10|

• f(x) = - |x|,

  g(x) = 2x + 10

• f(x) = x,

  g(x) = 2x + 10

• f(x) = |-x|,

  g(x) = 2x - 10

• f(x) = |x|,

  g(x) = 2x + 10

• None of these

Tags

CCSS.HSF-BF.A.1C

Solve the equation by the method of your choice. 4) 7x^2 - 20x - 3 = 0

• E) None of these

Tags

CCSS.HSA-REI.B.4B

Solve the system by the addition method.

x^2 + y^2 = 53

x^2 - y^2 = 45

• { (7, 2), (2, 7),

  (-7, -2), (-2, -7) }

• { (7, -2), (7, 2) }

• { (7, 2), (-7, 2),

  (7, -2), (-7, -2) }

• { (-7, -2), (-2, -7) }

• None of these

Tags

CCSS.HSA.REI.C.7

Find a rational zero of the polynomial function and use it to find all the zeros of the function. 6) f(x) = 4x^3 - 21x^2 + 29x - 6

• None of these

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.APR.B.2

Solve the polynomial inequality and express the solution set in interval notation. x^2 - 5x + 4 > 0

• (1, 4)

• (4, ∞)

• (-∞, 1) ∪ (4, ∞)

• (-∞, 1)

• None of these

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.APR.B.3

CCSS.HSA.CED.A.3

Use a Calculator and RREF to solve the linear system.

5x - 3y - 5z = -43

3x + 5y - 3z = 15

-4x - 7y + 9z = 23

• {(4, -6, -9)}

• {(6, 9, 6)}

• {(5, 4, 9)}

• {(4, 6, 9)}

• None of these

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.C.8

CCSS.HSA.REI.C.9

Use a Calculator and RREF to solve the linear system.

x - y + z = 8

x + y + z = 6

x + y - z = -12

• {(2, -1, 9)}

• {(-2, -1, 9)}

• {(2, -1, -9)}

• {(-2, -1, -9)}

• None of these

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.C.8

Use a Calculator and RREF to solve the linear system:

y + 5z = 28

2x + y + 2z = 5

-3x - 5z = -13

• {(-4, 3, 5)}

• {(-9, 4, 8)}

• {(-4, -2, 6)}

• {(-9, 7, 8)}

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.C.8

CCSS.HSA.REI.C.9