Choose the equation that matches the graph.
A. y = x2 - 2
B. y = x2 + 2
C. x = y2 + 2
D. x = y2 - 2
Answer: C
Mathematics
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Solve the equation.
- 
= 
A. 
B. 
C. 
D. 
Mathematics
Find the exact or approximate circumference of the circle, as indicated.Find the approximate circumference. Use ? ? 3.14.
A. 59.66 yd B. 1133.54 yd C. 119.32 yd D. 29.83 yd
Mathematics
Solve.In an electric circuit, the electromotive force is defined as V = cos 2?t, where t is time in seconds. Solve the equation for t.
A. t = 2? arccos V
B. t = 
arccos V
C. t = 
cos V
D. t = 2? cos V
Mathematics
A basket contains five red balls, four white balls and three blue balls. Two balls are drawn, one after the other, with the first ball replaced before the second is drawn.Find the probability of drawing two white balls.
A. 
B. 
= 
C. 
D. 
= 
E. none of these
Mathematics