Solve the problem.In a certain coastal basin, the sea water contains 3.2 grams of salt per 1000 milliliters of water. How many grams of salt would be in 5 liters of the sea water?
A. 0.16 grams
B. 1600 grams
C. 160 grams
D. 16 grams
Answer: D
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Solve the system of linear equations. If the system has infinitely many solutions, describe the solution with an ordered triple in terms of variable z.4x - y + 3z=12x + 4y + 6z=-325x + 3y + 9z=20
A. (2, -7, -1) B. (-8, -7, 9) C. no solution D. (8, -7, -2)
Graph the inequality.y < 4 - x2
A. 
B. 
C. 
D. 
Find the equation for the given conic in the x'y'-coordinates when the coordinate axes are rotated through an angle ?.x2 + 2xy + y2 - 8x + 8y = 0; ? = 45°
A. 3x'2 - 4
x'y' + y'2 = 0
B. 2x'2 - 
x'y' + 2y'2 = 0
C. x'2 = -4
y'2
D. x'2 = -4
y'
Solve the problem.If an object is dropped from a tower, then the velocity, V (in feet per second), of the object after t seconds can be obtained by multiplying t by 32 and adding 10 to the result. Find V as a linear function of t, and use this function to evaluate V(7.9), the velocity of the object at time 
A. V(7.9) = 264.1 feet per second B. V(7.9) = 262.8 feet per second C. V(7.9) = 262.1 feet per second D. V(7.9) = 260.8 feet per second