Solve the problem.The formula E = 1000(100 - T) + 580(100 - T)2 is used to approximate the elevation (in meters) above sea level at which water boils at a temperature of T (in degrees Celsius). Find the rate of change of E with respect to T for a temperature of 
A. 33,480 m/°C
B. -32,480 m/°C
C. -33,480 m/°C
D. -75,240 m/°C
Answer: C
Mathematics
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Solve the inequality 
. Restrict your attention to positive values of x. Round your answer to two decimal places.
?
A. 
B. The inequality is always true.
C. ?
D. The inequality is never true.
Mathematics
Write the compound statement in symbols.Let r = "The food is good." p = "I eat too much." q = "I'll exercise."If I exercise, then I won't eat too much.
A. r ? p B. ~(p ? q) C. p ? q D. q ? ~p
Mathematics
Decide whether the given set of numbers is a group under the given operation.Whole numbers; addition
A. Yes B. No
Mathematics
Find the exact value of the expression.
A. - 
B. - 
C. -2
D. -
Mathematics