Solve the problem.A surveyor measures the distance between two markers to be 404 m. Then, moving along a line equidistant from the markers, the distance d from the surveyor to each marker is 
where ? is the angle between the lines of sight to the markers. See the figure below. By using differentials, find the change in d if ? changes from 95.6° to 95.8°404 m
A. -0.4315 m
B. 0.03473 m
C. -0.8631 m
D. -24.72 m
Answer: A
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Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
Evaluate the expression 
for each choice of a, b, and c.a = 1, b = 1, c = 8
A. - 
+ 
i
B. 
- 
C. - 
- 
D. 
+ 
i
Solve the problem.You have 64 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area.
A. length: 32 feet, width: 32 feet B. length: 16 feet, width: 16 feet C. length: 32 feet, width: 16 feet D. length: 48 feet, width: 16 feet
The letters of the word "SCRAMBLE" are scrambled and arranged in a random order.In the situation above, how many arrangements start with a vowel?
Fill in the blank(s) with the appropriate word(s).