Describe the level curves of the function. Sketch the level curves for the given c-values.
?
,
?
A. ?
?
B. ?
C. ?
D. ?
E. ?
Answer: B
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Evaluate the integral.
A. 19 B. 4 C. 15 D. 16
Write the number as a Greek numeral.809
A. ?? B. ?? C. ?? D. ??
Estimate the magnitude of the error involved in using the sum of the first four terms to approximate the sum of the entire series.
A. 1.00 × 10-11 B. 1.11 × 10-10 C. 9.09 × 10-13 D. 8.33 × 10-14
Solve the problem.Jane wants to buy a photocopier. The salesman has the following information on 3 models. If all 3 are used, a specific job can be done in 50 minutes. If copier A operates for 20 minutes and copier B for 50 minutes, one-half the job is finished. If copier B operates for 30 minutes and copier C for 80 minutes, three-fifths of the job is done. Which is the fastest copier, and how long does it take for this copier to finish the whole job?
A. C is fastest; 120 min B. C is fastest; 100 min C. B is fastest; 100 min D. A is fastest; 120 min