Make the following time conversion.7 minutes to seconds
A. 210 sec
B. 168 sec
C. 420 sec
D. 84 sec
Answer: C
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Solve the problem.The minimum length L of a highway sag curve can be computed by L = 
,where ?1 is the downhill grade in degrees (?1 < 0°), ?2 is the uphill grade in degrees (?2 > 0°), S is the safe stopping distance for a given speed limit, h is the height of the headlights, and ? is the alignment of the headlights in degrees. Compute L for a 55-mph speed limit, where 
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and 
Round your answer to the nearest foot.
A. 846 ft
B. 869 ft
C. 824 ft
D. 893 ft
Graph the function.f(x) = log1/2(x + 3)
A. 
B. 
C. 
D. 
Solve the problem.Alan and Sue want to rescue their kitten who is stuck 3.7 m up in a tree. Sue stands on Alan's shoulders. The distance from Alan's feet to the top of his shoulders is 1 m 53 cm. When Sue extends her arms above her head the distance from her feet to the tip of her fingertips is 1 m 95 cm. How high will Sue be able to reach when she stands on Alan's shoulders? Give your answer in meters. Will they be able to reach the kitten?
A. 2.48 m; no B. 2.148 m; no C. 16.8 m; yes D. 3.48 m; no
Use the simplex method to maximize 
subject to the following. Round your answers to two decimal place, if necessary.
?
?
__________
?
__________
?
__________
What will be an ideal response?