Find the flux of the vector field F across the surface S in the indicated direction.F = 3xi + 3yj + zk; S is portion of the plane x + y + z = 4 for which 0 ? x ? 5 and 
direction is outward (away from origin)
A. 40
B. 50
C. 100
D. - 10
Answer: B
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The box plots represent a comparison of the annual salaries of a group of public and private employees
The range of salaries for the group of private employees is approximately
A. $20,000. B. $52,000. C. $40,000. D. $56,000. E. none of these
Estimate an answer to the problem.An advertisement states that television sets are on sale at B&G Electronics. The sale prices are: 
set, $147.99; 
set, $208.95; 
set, $231.99; 27-inch set, $289.97; 
set, $519.97. Estimate the approximate number of 
-4.0px;" /> sets that can be bought for $11,850.
A. 180
B. 20
C. 90
D. 80
Use the given triangles to evaluate the expression. Rationalize all denominators. 
sin 
A. 
B. 
C. 
D. 
Find the equation of the tangent line at the given value of x on the curve.2xy - y2 = 1, x = 1
A. y = x - 1 B. y = 1 C. x = 1 D. y = -x + 1