Indicate whether the statement is a simple or a compound statement. If it is a compound statement, indicate whether it is a negation, conjunction, disjunction, conditional, or biconditional by using both the word and its appropriate symbol.The animal is a mammal if and only if it nurses its young.
A. Compound; negation; ~
B. Compound; biconditional; ?
C. Compound; conditional; ?
D. Compound; disjunction; ?
Answer: B
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At what points is the given function continuous?f(x, y, z) = 
A. All (x, y, z) such that x2 + y2 ? 25 B. All (x, y, z) C. All (x, y, z) such that x2 + y2 ? 5 D. All (x, y, z) such that x2 + y2 ? 0
Solve the problem.The function A(r) = 4?r2 gives the surface area of a sphere. Find A(1) and interpret. Round to the nearest hundredth, if necessary.the area when the radius is 1 in.
A. A(1) = 37.7; The value of A(1) is the surface area, in square units when the radius is 1 unit(s). B. A(1) = 12.57; The value of A(1) is the measure of the radius when the surface area is 1 square unit(s). C. A(1) = 37.7; The value of A(1) is the measure of the radius when the surface area is 1 square unit(s). D. A(1) = 12.57; The value of A(1) is the surface area, in square units when the radius is 1 unit(s).
Simplify the complex fraction.
A. 
B. 
C. 
D. 
Identify the pair of lines as appearing to be parallel, perpendicular, or intersecting.
A. Intersecting B. Perpendicular C. Parallel