Answer:
1/3 is the slope
Step-by-step explanation:
hope this helps
To complete the square (x+2/5)^2 it would be x^2+(4/5)x+4/25
4,8,11,7 are the coefficients in this expression
Writing the equation that governs this situation:
-3C - (2.5C/hr)x = -18C
Simplifying, -3 - 2.5x = -18, or 3 + 2.5x = 18
Combining like terms: 2.5x = 18-3 = 15
Then x = 15/2.5 = 6. The temp. will reach -18C after 6 hours.
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Step-by-step explanation:
