Find the second-order partial derivative.Find fxy when f(x, y) = x4y6 - 
x6y7 + 17x - y.
A. 12x2y6 - 30
x4y7
B. 24x3y4 - 42
x5y5
C. 30x2y4 - 42
x5y5
D. 24x3y5 - 42
x5y6
Answer: D
Mathematics
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Factor the trigonometric expression.16 csc2? + 24 csc ? + 9
A. (4 csc ? - 3)2 B. (4 csc ? + 3)2 C. (16 csc ? + 1)(csc ? + 9) D. (4 csc2? + 3)(4? - 3)
Mathematics
Find the area enclosed by the given curves.y = - 4sin x, y = sin 2x, 0 ? x ? ?
A. 16
B. 
C. 4
D. 8
Mathematics
Subtract.9699 - 531
A. 168 B. 9166 C. 9168 D. 9106
Mathematics
Solve using a proportion. Round your answer to the nearest hundredth when necessary.It is recommended that there be at least 14.1 square feet of ground space in a garden for every newly planted shrub. A garden is 28.2' by 18'. Find the maximum number of shrubs the garden can accommodate.
A. 2 shrubs B. 12 shrubs C. 36 shrubs D. 169 shrubs
Mathematics