Find the second-order partial derivative.Find fyx when f(x,y) = 8x3y - 7y2 + 2x.
A. 24x2
B. -28
C. 48xy
D. -14
Answer: A
Mathematics
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Find the length of the curve.The curve r = 9 sin3 
, 0 ? ? ? 
A. 27(3
- ?)
B. 
(5? - 9
)
C. 
(2? - 3
)
D. 
(5? - 8)
Mathematics
Simplify the complex fraction using Method 1.
A. 
B. 
C. 32
D. 
Mathematics
Write a word name for the given decimal notation.4.00478
A. Four and four hundred seventy-eight thousandths B. Four and four hundred seventy-eight tenths C. Four and four hundred seventy-eight millionths D. Four and four hundred seventy-eight hundred-thousandths
Mathematics
Provide an appropriate response.Express 
as a decimal and as a percent.
A. 228.5714, 228.5714% B. 43.75, 0.4375% C. 0.4375, 4.375% D. 0.4375, 43.75%
Mathematics