Find numbers a and b, or k, so that f is continuous at every point.
A. impossible
B. a = 5, b = 7
C. a = -8, b = 12
D. a = 5, b = 17
Answer: B
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Find the circumference and area of a circle having the given diameter or radius. Use 3.14 for ?. Round your results to the nearest tenth.d = 4.8 mi
A. C ? 15.1 mi, A ? 18.1 mi2 B. C ? 7.5 mi, A ? 72.3 mi2 C. C ? 7.5 mi, A ? 30.1 mi2 D. C ? 15.1 mi, A ? 15.1 mi2
Solve the problem.A student is told to work any 6 out of 10 questions on an exam. In how many different ways can he complete the exam? (The correctness of his answers has no bearing.)
A. 210 B. 1,000,000 C. 5040 D. 24
Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.
A. 
B. 
C. - 
D. 
Rotate the axes to eliminate the xy-term in the equation. Then write the equation in standard form.
?
?
A. 
B. 
C. 
D. 
E. 