Simplify the expression. First use the distributive property to remove any parentheses.7(3x + 8 + y)
A. 21x + 56 + y
B. 21x + 8 + y
C. 21x + 8 + 7y
D. 21x + 56 + 7y
Answer: D
Mathematics
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Solve the problem.What domain D in space maximizes the value of the integral 
D
A. No such minimum domain exists.
B. D = the boundary of the ellipsoid 
.
C. D = the boundary and interior of the ellipsoid 
.
D. D = ?3
Mathematics
Add the given vectors by using the trigonometric functions and the Pythagorean theorem.A = 2.0, ? = 114 °B = 4.2, ? = 147 °
A. R = 0.5, ? = 137 ° B. R = 6.0, ? = 137 ° C. R = 6.0, ? = 133 ° D. R = 6.0, ? = 317 °
Mathematics
Find the angle in degrees when given the trigonometric values. ? represents the unknown angle measure.csc ? = 4.16
A. 13.9° B. 13.30° C. 13.3° D. 13.90°
Mathematics
Find the period of the function.y = sin 3x
A. 3
B. 1
C. 2?
D. 
Mathematics