Which of the following IS NOT one of the five important global trends discussed in chapter three?
A. advent of nanotechnology
B. global warming
C. water shortages
D. increase in trade barriers
Answer: D
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Combine like terms. Then write the polynomial in descending order of powers.-6y9 + 8y8
A. 2y9 B. Cannot be simplified C. 2y8 D. 2y17
Solve the problem.One dimension of a rectangular solid is represented by 3x units. The volume of the solid is 
cubic units. Express each of the other two dimensions of the rectangular solid in terms of x.
A. (6x - 4) and (2x - 5) B. (2x + 4) and (6x - 5) C. (2x - 4) and (6x - 5) D. Not enough information is given.
Solve the problem.A projectile is fired with an initial velocity of 500 feet per second at an angle of 45° with the horizontal. To the nearest foot, find the maximum altitude of the projectile. The parametric equations for the path of the projectile are x = (500 cos 45°)t, and y = (500 sin 45°)t - 16t2.
A. 1,945 feet B. 1,953 feet C. 1,969 feet D. 1,936 feet
Find the numerical value of the expression for the given value.
, x = -7
A. 0
B. Undefined
C. 
D. - 