Find the general solution for the differential equation.x2  + xy = 4x4 + 7x7, x > 0

A. y = x4 + x7 + C
B. y = x4 + x7 + 
C. y = x3 + x6 + 
D. y = k


Answer: C

Mathematics

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Write an equation of the line through the given point with the given slope. Write the equation in slope-intercept form.(0, 4); m = - 

A. y = - x + 4
B. y = - x + 
C. y = - x + 4
D. y = - x - 4

Mathematics

Determine whether the infinite geometric series has a limit. If a limit exists, find it.2 - 3 +  - . . .

A. 3
B.
C. No limit
D. 0

Mathematics

Solve the problem.Tickets for a play are sold at two prices; $16, and $29. Find a formula for the total cost T (in dollars) of k tickets that sold for $16 per ticket and n tickets that sold for $29 per ticket. Use the formula to find the value of T when k = 88 and n = 77.

A. T = $3784 B. T = $3741 C. T = $3641 D. T = $364,100

Mathematics

Approximate the area under the curve and above the x-axis using n rectangles. Let the height of each rectangle be given by the value of the function at the right side of the rectangle.f(x) = 2x2 + x + 3 from x = 0 to x = 6; n = 6

A. 221 B. 230 C. 211 D. 200

Mathematics