Reverse the order of integration and then evaluate the integral.

A. 20
B. 18
C. 14
D. 12


Answer: C

Mathematics

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Find the focus and directrix of the parabola.x2 = 28y

A. (0, -7); x = - 7 B. (7, 0); x = 7 C. (7, 0); y = 7 D. (0, 7); y = -7

Mathematics

Solve the given equation or inequality. If an equation is given, then write the solution set in set notation. If an inequality is given, then write the solution set in interval notation. - 4 = 12

A. {9} B. {9, -23} C. {11, 22} D. {16, -16}

Mathematics

Determine the real zeros of the polynomial and their multiplicities. Then decide whether the graph touches or crosses the x-axis at each zero.f(x) = 5(x - 4)(x - 6)3

A. -4, multiplicity 1, touches x-axis; -6, multiplicity 3 B. 4, multiplicity 1, touches x-axis; 6, multiplicity 3 C. -4, multiplicity 1, crosses x-axis; -6, multiplicity 3, crosses x-axis D. 4, multiplicity 1, crosses x-axis; 6, multiplicity 3, crosses x-axis

Mathematics

Simplify. 

A.
B.
C.  
D.  

Mathematics