Find the algebraic expression that is equal to sec ? - cos(-?).
?
A. 
B. 
C. 
D. tan2 ?
E. 
Answer: E
Mathematics
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Divide. Write the answer in lowest terms and as a whole or mixed number where possible.28 ÷ 
A. 21
B. 37
C. 
D. 7
Mathematics
Graph the equation.4x2 + 7y2 + 40x + 28y + 100 = -28
A. 
B. 
C. 
D. Empty set (equation has no graph)
Mathematics
Provide an appropriate response.Find the polar coordinates of a vector in standard notation that has rectangular coordinates of (1, 4).
A. (4.1, 76.0°) B. (1.4, 48.6°) C. (1.7, 76.0°) D. (4.1, 14.0°)
Mathematics
Write the equation as f(x) = a(x - h)2 + k. Identify the vertex.f(x) = x2 + 6x - 4
A. f(x) = (x + 3)2 - 13; (-13, -3) B. f(x) = (x + 6)2 - 40; (-40, -6) C. f(x) = (x + 3)2 - 13; (-3, -13) D. f(x) = (x + 6)2 - 40; (-6, -40)
Mathematics