Solve by completing the square. Give exact solutions. Simplify radicals and reduce.x2 + 6x = 5
A. 3 + 
B. -1 ± 
C. -3 ± 
D. -3 ± 1
Answer: C
Mathematics
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Find a formula for the inverse of the function described below.A size 12 dress in Country C is size 40 in Country D. A function that converts dress sizes in Country C to those in Country D is 
A. f-1(x) = 
+ 8
B. f-1(x) = 
C. f-1(x) = 
- 8
D. f-1(x) = x - 8
Mathematics
Solve.(p + 5)2 = 19
A. 
- 5
B. 
- 
C. 5 ± 
D. -5 ± 
Mathematics
Find the gradient field F of the function f.f(x, y, z) = x4e5x + y5z5
A. F = (4 + 5x)x3e5xi + 5y4z5j + 5y5z4k B. F = (4 + 5x)x3e5xi + 5y4j + 5z4k C. F = (1 + x)x3e5xi + y4z5j + y5z4k D. F = (4 + 5x)x3e5xi + (x4e5x + 5y4z5)j + (x4e5x + 5y5z4)k
Mathematics
Find functions f and g so that f ? g = H.H(x) = ?4x + 1?
A.
| f(x) = x; | g(x) = 4x + 1 |
B.
| f(x) = ?x?; | g(x) = 4x + 1 |
C.
| f(x) = ?-x?; | g(x) = 4x - 1 |
D.
| f(x) = -?x?; | g(x) = 4x + 1 |
Mathematics