Write the sentence as a proportion.3 is to 11 as 21 is to 77.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Answer: B
Mathematics
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Use the given transformation to evaluate the integral.  FIGURE 1.png)
(x + y) dA, where R is the square with vertices (0, 0), (4, 6), (6, ), (10, 2) and x = 4u + 6v, y = 6u - 4v.
What will be an ideal response?
Mathematics
Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (x + 3) sin x
A. 
(x + 3) sin x
B. cos x ln (x + 3) + 
C. (x + 3) sin x
D. sin x ln (x + 3)
Mathematics
Find the exact value of the expression.sin 20° cos 100° + cos 20° sin 100°
A. 
B. 
C. - 
D. - 
Mathematics
Find the exact value by using a half-angle identity.sin 
A. 
B. 
C. 
D. 
Mathematics