Find a polynomial equation with real coefficients that has the given roots.5i, -5i
A. x2 - 25 = 0
B. x2 - 10 - 25 = 0
C. x2 + 25 = 0
D. x2 + 10 + 25 = 0
Answer: C
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The following table shows the gross national product G, in trillions of dollars, t years after 2005. Based on the regression equation, what increase would you expect to see in the gross national product over a 5-year period? t 0 1 3 5 G 12.76 13.58 14.25 14.64? ?
A. 2.48 trillion dollars B. 1.80 trillion dollars C. 1.88 trillion dollars D. 2.13 trillion dollars
Solve the problem.Sheila, Susan, and Rosie want to divide a cake fairly using the lone chooser method. The chooser, Rosie, was determined by drawing straws. Sheila and Susan agreed that Sheila would make the division of the cake. Assuming that each of them plays the game correctly, which of the following statements [A), B), C) or D)] cannot be true?
A. Rosie believes that her share is worth 2/3 of the cake; Susan believes that her share is worth 1/2 of the cake; Sheila believes that her share is worth 1/3 of the cake. B. Rosie believes that her share is worth 1/3 of the cake; Susan believes that her share is worth 1/2 of the cake; Sheila believes that her share is worth 1/3 of the cake. C. Rosie believes that her share is worth 1/3 of the cake; Susan believes that her share is worth 1/3 of the cake; Sheila believes that her share is worth 2/3 of the cake. D. Rosie believes that her share is worth 1/3 of the cake; Susan believes that her share is worth 1/3 of the cake; Sheila believes that her share is worth 1/3 of the cake. E. none of these
Find the work done by the force field F(x, y) = x sin(y)i +yj on a particle that moves along the parabola y = x² from (1,1) to (2,4).
Select the correct answer.
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Solve the problem.The gravitational attraction A between two masses varies inversely as the square of the distance between them. The force of attraction is 4 lb when the masses are 3 ft apart, what is the attraction when the masses are 6 ft apart?
A. 2 lb B. 4 lb C. 1 lb D. 3 lb