Simplify
Mathematics
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Determine whether F is conservative.F(x,y,z) = 7i + -ezj - yezk
A. conservative B. not conservative
Mathematics
Multiply.(5
+ 6)2
A. 239 + 60
B. 311 - 60
C. 281 + 60
D. 311 + 60
Mathematics
Solve the problem.An airplane has an airspeed of 125 km/h. It is to make a flight in a direction of 305° while there is a 
wind from 210°. What will the airplane's actual direction be?
A. 318° B. 107° C. 283° D. 292°
Mathematics
Solve area problem.A rectangular piece of fabric is 
by 
A triangular area with a height of 
and a base of 
is cut from the fabric. How much area is left over?
A. 267.15 ft2 B. 287.575 ft2 C. 374.5 ft2 D. 534.3 ft2
Mathematics