Solve the problem.The function t(x) = -1.29x2 + 8.80x + 42.69 represents the temperature in Riversbend, IL from 11 P.M. on March 6, 2008 until 7 A.M. on March 7, 2008, where x is the number of hours after midnight on March 6, 2008. Determine the x-coordinate of the vertex of the graph of t(x). Then use this value in the function t(x) to estimate the maximum temperature. Round your answer for the vertex to the nearest hour. Round your answer for the temperature to the nearest degree.
A. x = 3.4; t = 57.6°
B. x = 3; t = 58°
C. x = -3; t = -2°
D. x = 3; t = 68°
Answer: B
Mathematics
You might also like to view...
Use the quotient rule and the product rule to simplify each radical.
A. 
B. 
C. 
D. 
Mathematics
It is never appropriate to use functional notation when dealing with a table of values.
Answer the following statement true (T) or false (F)
Mathematics
Use a calculator to solve the equation on the interval 0 ? x < 2?. Round the answer to one decimal place if necessary.x + 3 sin x = 1
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the following circle graph problems.If rent is represented by 54° on a circle graph showing all expenses, and the cost of rent is $765, how much are the total expenses?
A. $6,120 B. $6,375 C. $4,590 D. $5,100
Mathematics