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161E1-F01

161E1-F01 - MA 161 161E EXAM 1 FALL 2001 1 If |4 x2 | 5...

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MA 161 & 161E EXAM 1 FALL 2001 1. If | 4 - x 2 |≤ 5then A. - 1 x 3 B. - 3 x C. 0 x 3 D. 1 x 3 E. - 3 x 3 2. An equation for the line through the point (3 , 6) parallel to the line with equation 2 x + y =1is A. y + x =9 B. 2 y - x C. y +2 x =12 D. 2 y + x =15 E. y - 2 x =0 3. cot(sin - 1 x )= A. 1 - x 2 B. x 1 - x 2 C. x 1 - x 2 D. 1 - x 2 x E. 1 - x 2 1

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MA 161 & 161E EXAM 1 FALL 2001 4. The graph of y = e x is reﬂected about the y axis and then reﬂected about the line y = 1. The resulting graph is the graph of y = A. e 1 - x B. 2 - e x C. 1 - e - x D. 2 - e - x E. 1 - e x 5. A radioactive isotope has a half-life of 12 days. Initially there are 7 grams of the isotope. After t days how much of the isotope remains? A. 7 · 2 t/ 12 B. 12 · 2 t/ 7 C. 12 · t - t/ 7 D. 7 · 2 - t/ 12 E. 7 · 2 - 12 t 6. If ln x - ln( x - 1) = 1 then x = A. 0 B. 1 C. e e - 1 D. 1 - e E. 1 - 1 e 2
MA 161 & 161E EXAM 1 FALL 2001 7. lim t 0 3+ t - 3 t = A. 0 B. 1 2 3 C. 1 3 D. 3 E. 8. lim x 2 - x 2 - 4 | x - 2 | = A. - 4 B. - 2 C. 0 D. 2 E. 4 9. The graph of x 1+ x 4 looks most like A. x y B. x y C. x y D. x y E. x y 3

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MA 161 & 161E EXAM 1 FALL 2001 10. Find all the values of c so that the function f ( x )= ± c 2 - x 2 if x< 2 2( c + x )i f x 2 is continuous on all of ( -∞ , ). A. - 4 , - 2 B. - 2 , 4 C. 2 D. - 2
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161E1-F01 - MA 161 161E EXAM 1 FALL 2001 1 If |4 x2 | 5...

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