Solve.y = x23x = y + 2
A. (2, 1), (1, 4)
B. (1, 1), (2, 4)
C. (1, 4), (2, 1)
D. (1, 1), (4, 2)
Answer: B
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Solve the problem.What region in the xy-plane maximizes the value of 
?R
A. The ellipse 100x2 + 49y2 = 1
B. The ellipse 
+ 
= 1
C. The ellipse 
+ 
= 1
D. The ellipse 49x2 + 100y2 = 4900
Solve the problem.Find parametric equations for the normal line to the surface 
at the point 
A. 
B. 
C. 
D. 
Factor out the greatest common factor.m6n4 - m5n6
A. Prime polynomial B. m6n4(1 - mn2) C. m6n6(m - n2) D. m5n4(m - n2)
A computer password is made up of four characters. Each character can be a capital letter (A through Z), a lowercase letter (a through z) or a digit (0 through 9).How many passwords have 3 letters (uppercase or lowercase) and only one digit?
A. 523 × 10 B. 4 × 52× 10 C. 4 × 523 × 10 D. 52 × 51 × 50 × 10 E. none of these