Solve the system by elimination. x - 7y = -539x - 8y = -37
A. {(2, 9)}
B. {(-3, 9)}
C. {(3, 8)}
D. ?
Answer: C
Mathematics
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Solve the problem. Round to tenths where necessary.S(x) = -x3 + 6x2 + 288x + 4000, 4 ? x ? 20 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. 12°C B. 8°C C. 20°C D. 4°C
Mathematics
(3ax2)(4b2z)(7a2z) =
a. 84a2b2x2z b. 84a3b2x2z2 c. 84a3b2x2 d. 14ax2bz2 e. 10a3b2x2z
Mathematics
Select the more reasonable temperature for the item.An ice maker22°C22°F
A. 22°C B. 22°F
Mathematics
Determine whether the equation defines y as a function of x. x - 4y = 5
A. function B. not a function
Mathematics