Write an equation for the parabola.
A. y2 = 4x
B. x2 = -4y
C. y2 = -4x
D. x2 = 4y
Answer: D
Mathematics
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Find the magnitude.Let u = 
. Find the magnitude (length) of the vector: 5u.
A. 5
B. -5
C. 5
D. 
Mathematics
Simplify the expression. Assume that variables can represent any real number.
A. 
B. x + 9
C. -x - 9
D. -
Mathematics
Simplify the expression.  figure 1.png)
 figure 2.png)
Mathematics
Find the value of the expression.log4 64
A. 12 B. 64 C. 4 D. 3
Mathematics