Add or subtract the mixed numbers.7
+ 14
+ 16
A. 39
B. 38
C. 38
D. 37
Answer: C
Mathematics
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Solve the problem.A ball is dropped from a height of 21 m and always rebounds 
of the height of the previous drop. How far does it travel (up and down) before coming to rest?
A. 105 m B. 42 m C. 126 m D. 63 m
Mathematics
Add the given vectors by using the trigonometric functions and the Pythagorean theorem.A = 2.04, ?a = 5.4°B = 5.05, ?b = 2.7°
A. R = 2.7, ? = 68° B. R = 5.4, ? = 248° C. R = 2.7, ? = 51.1° D. R = 7.1, ? = 231.1°
Mathematics
Using Green's Theorem, compute the counterclockwise circulation of F around the closed curve C.F = ln (x2 + y2)i + tan-1 
j; C is the region defined by the polar coordinate inequalities 1 ? r ? 7 and 
A. 96 B. -12 C. 50 D. 0
Mathematics
Solve the equation.- 
x = -20
A. {25}
B. 
C. 
D. 
Mathematics