Use the discriminant to determine the number and type of solutions of the equation.x2 - 6x + 9 = 0
A. two real solutions
B. two complex but not real solutions
C. one real solution
Answer: C
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Solve the problem.Find the derivative of the function 
at the point 
in the direction in which the function increases most rapidly.
A. 
B. 
C. 
D. 
Use an Euler diagram to determine whether the argument is valid or invalid.All dogs have fur.All cats have fur. Therefore, a cat is not a dog.
A. valid B. invalid
Use the Alternating Series Estimation Theorem or Taylor's Inequality to estimate the range of values of x for which the given approximation is accurate to within the stated error.
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Use a calculator to solve the equation on the interval [0, 2?). Round the answer to two decimal places.cos x = -0.63
A. 2.25, 4.03 B. 0.89, 4.03 C. 2.25, 5.39 D. 0.89, 2.25