Find the complex solutions of the given equation.x2 + x + 5 = 0
A. 
B. 
C. 
D. 
Answer: B
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Use the Concavity Theorem to determine where the given function is concave up and where it is concave down. Also find all inflection points.T(t) = 2t - t3
A. Concave up on (-?, 0) ? (1, ?), concave down on (0, 1); inflection points (0, 0), (1, 2) B. Concave up on (-?, 0), concave down on (0, ?); inflection point (0, 0) C. Concave up on (0, ?), concave down on (-?, 0); inflection point (0, 0) D. Concave down for all t, no points of inflection
Evaluate the double integral.
A. 
B. 
C. 
D. 
Solve the problem.A company predicts that sales will increase rapidly after a new product is released, with the number of units sold weekly modeled by N = 3000(0.1)0.5t, where t represents the number of weeks after the product is released. How many units per week were sold at the beginning of the campaign?
A. 3000 units B. 150 units C. 300 units D. 360 units
A coin is "loaded" so that the probability of tossing a head is 
. If it is tossed 50 times, what are the mean and the standard deviation of the number of heads that occur?
?
A. 
?
B.
?
C.
?
D.
?
E.
