Find the domain. Write interval notation for the answer.f(x) = 
A. (-?, -5) ? (-5, ?)
B. (-?, 3) ? (9, ?)
C. (-?, -3) ? (-3, 3) ? (3, ?)
D. (-?, -3) ? (3, ?)
Answer: C
Mathematics
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The graph of the logarithm is concave down.
Answer the following statement true (T) or false (F)
Mathematics
Graph the equation. Select integers for x, -3 ? x ? 3.y = x3 + 1
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Evaluate 
at (u,v) = (3, 3) for the function w(x, y) = xy - y2; x = u - v, y = uv.
A. 9 B. 6 C. 0 D. -45
Mathematics
Solve.If a flagpole 15 feet tall casts a shadow that is 20 feet long, find the length of the shadow cast by an antenna which is 39 feet tall. Round to the nearest tenth if necessary.
A. 44 ft B. 52 ft C. 29.3 ft D. 7.7 ft
Mathematics