Write the first four terms of the binomial expansion.(3x + 2y)7
A. 823,543y + 6x6y2 + 5x5y3 + 4x4y4
B. 2187x7 + 10,206x6y + 20,412x5y2 + 22,680x4y3
C. 7x7 + 6x6y + 5x5y2 + 4x4y3
D. 2187x7 y + 10,206x6y2 + 20,412x5y3 + 22,680x4y4
Answer: B
Mathematics
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Given y = f(u) and u = g(x), find dy/dx = f'(g(x))g'(x).y = tan u, u = -10x + 11
A. -10 sec2(-10x + 11) B. - sec2(-10x + 11) C. -10 sec (-10x + 11) tan (-10x + 11) D. sec2(-10x + 11)
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Solve the logarithmic equation.log3x = 5
A. 125 B. 15 C. 1000 D. 243
Mathematics
Find an equation for the ellipse described. Graph the equation.Center at (-4, 5); focus at (-8, 5); contains the point (-9, 5)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Combine the complex numbers.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics