Use a calculator to give the real number value.arcsec (2.8842912)
A. 69.714051
B. 0.35405662
C. 1.2167397
D. 1.5139822
Answer: C
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Calculate the arc length of the indicated portion of the curve r(t).r(t) = (7cos3 8t)j + (7sin3 8t)k; 
? ? t ? 
?
A. 
B. 
C. 0
D. 21
Provide an appropriate response.Suppose ?PQR ? ?ABC, where ?ABC is shown below. Find PQ.
A. 5 B. Cannot be determined C. 3 D. 4
The distance from our Sun to Earth is approximately 93,000,000 miles. This distance is also called an Astronomical Unit (AU).The distance from the Sun to Mars is 0.4 AU. Assuming the orbit of Mars to be roughly circular, what is the distance in miles traveled by Mars in one revolution around the Sun in miles?
What will be an ideal response?
The management of UNICO Department Store decides to enclose an 
area outside their building to display potted plants. The enclosed area will be a rectangle, one side of which is provided by the external walls of the store. Two sides of the enclosure will be made of pine board, and the fourth side will be made of galvanized steel fencing material. If the pine board fencing costs $15/running foot and the steel fencing costs $5/running foot, determine
the dimensions of the enclosure that will cost the least to erect. Round your answers to two decimal places.
?
?
A. 14.31 ft by 84.68 ft
B. 12.13 ft by 86.86 ft
C. 14.14 ft by 84.85 ft
D. 15.68 ft by 83.31 ft