Answer the question.If we apply the quadratic formula and find that the value of b2 - 4ac is positive, what can we conclude about the solutions?
A. The equation has two irrational solutions.
B. The equation has exactly one rational solution.
C. The equation has two real number solutions.
D. The equation has no real number solutions.
Answer: C
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Use integration by parts to establish a reduction formula for the integral.
, n ? 1
A. 
= 
cotn-1 x - 
B. 
= 
cotn-2 x - 
C. 
= - cotn-1 x + 
D. 
= 
cotn-1 x + 
Graph the radical function. Compare the graph to that of the square root function or cube root function.H(x) = -3
A. It looks like the graph of the square root
function, but it is stretched by a factor of 3
and reflected over the x-axis.
B. It looks like the graph of the square root
function, but it is stretched by a factor of 3
and reflected over the x-axis.
C. It looks like the graph of the square root
function, but it is stretched by a factor of 3.
D. It looks like the graph of the cube root
function, but it is stretched by a factor of 3.
Graph the solution set of the system.y ? - x2 - 6x - 4y ? x2 + 6x + 4
A. 
B. 
C. 
D. 
Find the indicated term.If a1 = 8 and r = -2, find a4.
A. -4096 B. -64 C. -40 D. 128