Express the function in the form f(x) = a(x - h)2 + k and indicate the vertex.f(x) = -x2 + x - 6
A. f(x) = -(x + 1)2 - 8
vertex: (-1, -8)
B. f(x) = -(x + 
)2- 
vertex: 
C. f(x) = -(x - 1)2 - 6
vertex: (1, -6)
D. f(x) = -(x - 
)2 - 
vertex: 
Answer: D
Mathematics
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Use the appropriate addition formula to find the exact value of the expression.tan 
A. 2 + 
B. 2 - 
C. 
D. 
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Factor the polynomial completely using the grouping method.16x2 + 8x - 35
A. (4x - 5)(4x + 7) B. prime C. (4x + 5)(4x - 7) D. (4x - 5)(x + 7)
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Solve the problem.y varies jointly as a and b and inversely as the square root of c. y = 20 when a = 8, b = 5, and 
Find y when a = 9, b = 3, and c = 25.
A. 405 B. 3.24 C. 16.2 D. 5.4
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Simplify using the rules for exponents.
3
A. 
B. 
C. 
D. 
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