Find the matrix product, if possible.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem. Round to tenths where necessary.S(x) = -x3 + 3x2 + 189x + 1200, 2 ? x ? 9 is an approximation to the number of salmon swimming upstream to spawn, where x represents the water temperature in degrees Celsius. Find the temperature that produces the maximum number of salmon.
A. 9°C B. 2°C C. 3°C D. 8°C
Mathematics
Perform the operation by applying the standard order of operations for a series of calculations.8 + 16 ÷ 4 × 2 - 3
A. 9 B. 13 C. 19 D. 29
Mathematics
Solve the problem.A $8920 note is signed, for 160 days, at a discount rate of 
Find the proceeds.
A. $8662.31 B. $8665.84 C. $8340.20 D. $8920.00
Mathematics
Express the sum using summation notation.
+ 
+ 
+ ... + 
A. 
B. 
C. 
D. 
Mathematics