Convert to an exponential equation.log2 
= -3
A. 21/8 = 3
B. 2-3 = 
C. 
3 = 2
D. 32 = 
Answer: B
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Graph the function.A satellite is orbiting the earth such that its displacement D north of the equator (or south if D < 0) is given by 
. Sketch two cycles of D as a function of t. Use 
Label the point on the horizontal which represents the end of the second cycle.
A. 
B. 
C. 
D. 
Solve.x2 + 2x - 4 ? 0
A. (-?, -1 - 
] ? [-1 + 
, ?)
B. (-?, -1 - 
) ? (-1 + 
, ?)
C. (-?, -
] ? [
, ?)
D. [-1 - 
, -1 + 
]
Represent each circuit with a symbolic statement. Using a truth table, state whether the circuits are equivalent.
A. (p ? q) ? ~p; (~p ? q) ? p; not equivalent B. (p ? q) ? ~p; (~p ? q) ? p; not equivalent C. (p ? q) ? ~p; (~p ? q) ? p; equivalent D. (p ? q) ? ~p; (~p ? q) ? p; equivalent
Add.
A. 76.977 B. 77.977 C. 78.077 D. 77.077