Solve the problem. Round answers to the nearest tenth if necessary.An alien observer on Planet X can approximate distances in the sky by using his "hand" at arm's length. An outstretched hand is about 35 arc degrees, a clenched fist is about 25 arc degrees, and a thumb corresponds to about 1 arc degree. (i) If one clenched fist plus one outstretched hand covers the distance between two stars, about how far apart in arc degrees are the stars? (ii) The apparent size of Moon X as observed from Planet X is about 21 arc minutes. Approximately what part of an observer's thumb would cover Moon X?
A. (i) 50 arc degrees; (ii) approximately 
of a thumb
B. (i) 61 arc degrees; (ii) approximately 
of a thumb
C. (i) 26 arc degrees; (ii) approximately 
of a thumb
D. (i) 60 arc degrees; (ii) approximately 
of a thumb
Answer: D
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Find the sum.-56 + 73
A. 17 B. -17 C. -129 D. 129
Find the equation for the plane tangent to the parametrized surface S at the point P.S is the cone r(r, ?) = r cos ?i + r sin ?j + 3rk; P = 
What will be an ideal response?
The Acme Class Ring Company designs and sells two types of rings: the VIP and the SST. They can produce up to 24 rings each day using up to 60 total man-hours of labor. It takes 3 man-hours to make one VIP ring, versus 2 man-hours to make one SST ring.How many of each type of ring should be made daily to maximize the company's profit, if the profit on a VIP ring is $40 and on an SST ring is $35?
A. 14 VIP and 10 SST B. 18 VIP and 6 SST C. 16 VIP and 8 SST D. 12 VIP and 12 SST
Perform the indicated operation or operations.- 
+ 
A. - 
B. 
C. 
D. - 