Solve.-8.7 ? 1.3 - 0.2(5x + 3) < 7.62
A. -6.92 < x ? 9.4
B. -5.72 ? x < 6.8
C. -6.92 ? x < 9.4
D. -5.72 < x ? 6.8
Answer: A
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Find the average value of the function f over the given region.f(x, y) = 
over the region bounded by 
, 
, 
, and 
.
A. 2 ln 2
B. 50 ln 2
C. ln 2
D. 
ln 2
Determine which purchase has the lower unit price.Brand A: 12 oz for $3.96Brand B: 15 oz for $5.55
A. Equal value B. Brand A C. Brand B D. Not enough information
Solve the following system by any appropriate method. If there is no real number solution, so state.
- 
= 1x + y = 7
A. (2, 3), (-16, 25) B. (3, 4), (-17, 24) C. (3, 10), (-17, -10) D. (2, 4), (-16, 24)
Use your graphing calculator to determine if the equation appears to be an identity or not by graphing the left expression and right expression together.
?
?
A. not an identity B. is an identity