The equation of a horizontal parabola is given. Determine how the parabola opens and find the parabola's vertex.x = (y - 4)2 + 2
A. opens to right; (4, 2)
B. opens to right; (2, 4)
C. opens to right; (2, -4)
D. opens to left; (4, 2)
Answer: B
Mathematics
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Express the given expression in simplest form with only positive exponents.
3
A. 
B. 
C. 27y12
D. 
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Solve the inequality. Write the solution set in interval notation.(x + 5)(x + 4) > 0
A. [-5, -4] B. (-?, -5] ? [-4, ?) C. (-5, -4) D. (-?, -5) ? (-4, ?)
Mathematics
Find the domain of the composite function f ? g.f(x) = 
; g(x) = 
A. {x 
B. {x 
C. {x 
D. {x 
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = - 
, 
< ? < 2?Find sin 
.
A. 
B. - 
C. - 
D. - 
Mathematics