Decide whether the relation defines a function.{(-6, -4), (-1, 3), (1, 2), (5, -7)}
A. Function
B. Not a function
Answer: A
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Find the gradient field F of the function f.f(x, y, z) = 
A. F = 
i + 
j + 
k
B. F = - 
i - 
j - 
k
C. F = - 
i - 
j - 
k
D. F = 
i + 
j + 
k
How many distinguishable permutations of letters are possible in the word?LOOK
A. 16 B. 12 C. 4 D. 24
Solve the problem.The side of a square equals the length of a rectangle. The width of the rectangle is 4 meters longer than its length. The sum of the areas of the square and the rectangle is 240 square centimeters. Find the side of the square.
A. 12 cm B. 10 cm C. 100 cm D. 2 cm
Solve the problem.The outfield wall in a baseball park is in the shape of a quarter circle. If the radius of the circle is 7 feet, how long is the wall? Use 3.14 for ?. Round your answer to the nearest tenth.
A. 5.5 ft B. 22.0 ft C. 9.0 ft D. 11.0 ft