Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.The temperature in Fairbanks is approximated by T(x) = 37 sin 
+ 25,where T(x) is the temperature on day x, with x = 1 corresponding to 
and x = 365 corresponding to Dec. 31. Estimate the temperature on day 49.
A. -29° B. 45° C. -4° D. -25°
Mathematics
Determine the domain and the range of the function.f(x) = -x2 + 8x - 7
A. domain: all real numbers range: {y|y ? -9} B. domain: all real numbers range: {y|y ? 9} C. domain: all real numbers range: all real numbers D. domain: {x|x ? -4} range: {y|y ? 9}
Mathematics
Use the slope and y-intercept to graph the linear function.F(x) = 
x
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation. Simplify if possible.
+ 
A. 
B. 
C. 
D. 
Mathematics