Evaluate the double integral
?
?
for the given function f(x, y) and the region R.
?
; R is bounded by 
and y = x.
?
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve by the elimination method.x + 4y = 157x + y = 16
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation and, if possible, simplify.
(
+ 
)
A. 
+ 
B. 
? 
C. 42 + 
D. 
+ 7
Mathematics
For each right triangle, find the missing quantity.Find c. Round to the nearest hundredth if necessary.
A. c = 838.08 m B. c = 825.43 m C. c = 811.86 m D. c = 805.43 m
Mathematics
Estimate the product or quotient by first rounding each number so that there is one nonzero digit.9.4 ? 39
A. 360 B. 36 C. 3600 D. 480
Mathematics