For the given equation, evaluate the discriminant. How many real solutions are there?5x2 - 19x = 4
A. 281; two
B. -361; none
C. 0; one
D. 441; two
Answer: D
Mathematics
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Multiply. Simplify the answer completely.
? 
? 
A. 
B. 
C. 
D. 
Mathematics
Describe the end behavior of the polynomial function by finding 
f
and 
f(x) = 4x2 - 2x3 + 6x + 7
A. ?, -? B. ?, ? C. -?, ? D. -?, -?
Mathematics
Find values of x, y, and ? that satisfy the system. These systems arise in certain optimization problems in calculus, and ? is called a Lagrange multiplier.
?
?
?
A. ?x = 24, y = -49, ? = 24 B. ?x = -49, y = 48, ? = -49 C. ?x = 24, y = 48, ? = -49 D. x = 24, y = -49, ? = -49 E. ?x = 24, y = 48, ? = 48
Mathematics
Match the given equation with one of the graphs. 49x2 + 16y2 = 784
A. 
B. 
C. 
D. 
Mathematics