Find the requested probability.A coin is biased to show 43% heads and 57% tails. The coin is tossed twice. What is the probability that the coin turns up heads once and tails once?
A. 43%
B. 57%
C. 49.02%
D. 24.51%
Answer: C
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Find the absolute extreme values of the function on the interval.h(x) = 
x + 1, -2 ? x ? 4
A. absolute maximum is 1 at x = -4; absolute minimum is -4 at x = 2 B. absolute maximum is 1 at x = 4; absolute minimum is 0 at x = -2 C. absolute maximum is 1 at x = -2; absolute minimum is 0 at x = 4 D. absolute maximum is 3 at x = 4; absolute minimum is 0 at x = -2
Write the first four terms of the binomial expansion.(3x + 2y)7
A. 823,543y + 6x6y2 + 5x5y3 + 4x4y4 B. 2187x7 + 10,206x6y + 20,412x5y2 + 22,680x4y3 C. 7x7 + 6x6y + 5x5y2 + 4x4y3 D. 2187x7 y + 10,206x6y2 + 20,412x5y3 + 22,680x4y4
Solve equation using quadratic formula.15y2 + 19y + 6 = 0
A. 
, 
B. - 
, - 
C. 
, - 
D. - 
, - 
Graph the function.y = csc 
A. 
B. 
C. 
D. 