Convert the polar number 2.75(cos315° + isin315°) to rectangular form.
What will be an ideal response?
1.9 – 1.9j
Mathematics
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Refer the figure below, where ? 
? 
. Find m(
) and 
.
A.
m() = 56°, = 4 cm
B.
m() = 80°, = 3 cm
C.
m() = 54°, = 4 cm
D.
m() = 54°, = 3 cm
Mathematics
?The following table shows the number of magazines sold ?t weeks after the first issue was published.
?
102030405060
164219041973199719991642?
Based on the table, what do you expect is the limiting value of magazine sales?
What will be an ideal response?
Mathematics
Find all the second order partial derivatives of the given function.f(x, y) = x ln (y - x)
A. 
= 
; 
= - 
; 
= 
= 
B. 
= 
; 
= 
; 
= 
= 
C. 
= 
; 
= - 
; 
= 
= - 
D. 
= 
; 
= - 
; 
= 
= 
Mathematics
Perform the indicated operation. Make sure you simplify your final answer.1
÷ 4
A. 
B. 
C. 
D. 
Mathematics