Solve the differential equation.xy '+ 4y = 
, x > 0
A. y = 
, x > 0
B. y = 
, x > 0
C. y = 
, x > 0
D. y = 
, x > 0
Answer: C
Mathematics
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Simplify.(-11 - 3)(-26 - 18)
A. 616 B. -64 C. 64 D. -616
Mathematics
Find a formula for the nth partial sum of the series and use it to find the series' sum if the series converges.5 + 30 + 180 + ... + 5 ? 6n-1 + ...
A. 
; 1
B. 
; series diverges
C. 
; series diverges
D. 
; 
Mathematics
Solve.The daily profit in dollars of a specialty cake shop is described by the function 
where x is the number of cakes prepared in one day. The maximum profit for the company occurs at the vertex of the parabola. What is the maximum profit?
A. $140,292 B. $93,636 C. $29,241 D. $171.00
Mathematics
Calculate using the rules for order of operations.
A. 70 B. 99 C. 106 D. 121
Mathematics