Simplify.
A. 12
B. 1
C. 
D. 
Answer: C
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Solve the equation 
. Restrict your attention to the horizontal span of 0 to 10. Round your answer to two decimal places if necessary.
?
A. 8.07 B. 6.36 C. 5.38 D. 7.13
Solve the problem.If f(x, y) = (3000ey)/(1 + 
/2) represents the population density of a planar region on Earth, where x and y are measured in miles, find the number of people within the rectangle -7 ? x ? 7 and -2 ? y ? 0.
A. 6000(1 - e-2) ln 4 ? 11,399
B. 3000(1 - e-2) ln 
? 3902
C. 12,000(1 - e-2) ln 
? 15,606
D. 6000(1 - e-2) ln 
? 7803
Perform the indicated operation and write the answer in lowest terms. 
+ 
A. 
B. 
C. 
D. 
Classify the polynomial as constant, linear, quadratic, cubic, or quartic, and determine the leading term, the leading coefficient, and the degree of the polynomial.g(x) = 
x3 - 10x + 7
A. Quadratic; 
x2; 
; 2
B. Linear; -10x; -10; 1
C. Linear; 7; 7; 1
D. Cubic; 
x3; 
; 3