Rotate the axes to eliminate the xy-term in the following equation and then write the equation in standard form.
a. 
b. 
c. 
d. 
e. 
c.
Mathematics
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Find the magnitude of u × v and the unit vector parallel to u × v in the direction of u × v.u = 7i, v = 6j
A. 42; 42k B. 42; k C. 42; -k D. 7; 6k
Mathematics
Solve the problem.The distance, d, that a falling body falls in t seconds is given by the expressiond = 
gt2.Find d if g is 
and t = 8.0 s
A. 515 ft B. 2060 ft C. 129 ft D. 1030 ft
Mathematics
Multiply or divide as indicated.
A. 4.817 B. 0.481700 C. 48.17 D. 481.7
Mathematics
Perform the indicated operations.26 + 16 ? 24 - 28
A. 980 B. -168 C. 382 D. 38
Mathematics