Solve the equation for -2? ? x ? 2?.sec x = 1
A. - 
, 
B. -2?, 0, 2?
C. -?, ?
D. none
Answer: B
Mathematics
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Find the probability.A family has five children. The probability of having a girl is 1/2. What is the probability of having exactly 2 girls and 3 boys?
A. 
B. 
C. 
D. 
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Determine the indicated function.A ball is to be made to contain a volume V. Express the total surface area A of the ball as a function of V and the radius r of the ball.
A. A = 
B. A = 
C. A = 3Vr
D. A = 
Mathematics
In the circuit shown below, X =
Mathematics
Find the midpoint of the line segment joining the two points.
and 
A. 
B. 
C. 
D. 
Mathematics