2006 SAC

[Celsion]

5. Harry Hare drove 210 km to Myrtle Turtle's house. Part of the 4 hour trip was in town at 30 km/h and the rest was on a major highway at 60 km/h. How many km did Harry drive on the major highway?

(e) 180 km

10. Huh, how does log(6[unparseable or potentially dangerous latex formula])= 4*log(6y)? You can ignore the constant? and bring down the exponent? log([unparseable or potentially dangerous latex formula])= 4*log(y) so the constant is ignored?

14. Let tan A=[unparseable or potentially dangerous latex formula], where A is in QIII. Find cos A.

21. Which of the following sequences is divergent?

(a) {[unparseable or potentially dangerous latex formula]} (b) {[unparseable or potentially dangerous latex formula]} (c) {[unparseable or potentially dangerous latex formula]} (d) {[unparseable or potentially dangerous latex formula]} (e) {[unparseable or potentially dangerous latex formula]}

Thanks in advance.

[bradp]

5) d = rt
d = r1t1 + r2t2
210 = (30)(4-t) + (60)(t)
210 = 120 + 30t
t = 3 hr.
3 * 60 = 180 km

10) check UIL website for correction

14) thinking of the unit circle... tan = sin/cos = y/x - we know sin = 7/r and cos = 24/r, r = sqrt(24^2 + 7^2), cos is negative in QIII
-24/25

21) which one does not approach a specific number (limit) as n ---> infinity?