Graph the function.f(x) = x3 - 3x2
A. 
B. 
C. 
D. 
Answer: B
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The scalar function div(grad f) = ? ? ? f (also written ?2f) is called the Lapalacian, and the function f satisfying ?2f = 0 is said to be harmonic. ?2f = fxx + fyy + fzz. Find ?2f for the following function and decide if it is harmonic.f(x, y, z) = x2yz - 
A. harmonic B. not harmonic
Provide an appropriate response.What number is 0.5% of 78?
A. 0.39 B. 1.56 C. 39 D. 156
Answer the question(s) based on the following situation: For a population of 2000 students taking the SAT math exam, the scores on the exam have an approximately normal distribution with mean ? = 590 and standard deviation ? = 70.A score of 700 has an approximate standardized value of
A. 10. B. -1.57. C. 110. D. 1.57. E. none of these
Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.x9 x-6
A. - 
B. x3
C. 
D. -x3