Solve.log x - log(x + 4) = 1

A. - 
B. - 
C.
D. No solution


Answer: D

Mathematics

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Find the polynomial of lowest degree that will approximate F(x) throughout the given interval with an error of magnitude less than than 10-3.F(x) = , [0, 0.5]

A. x -  + 
B. x -  + 
C. x -  + 
D. x -  + 

Mathematics

Subtract and simplify. Write the answer as a mixed number as needed.8 sec - 4 sec

A. 4 sec
B. 4 sec
C. 12 sec
D. 4 sec

Mathematics

Find the vertex.f(x) = -2x2 - 20x - 52

A. (-2, -5) B. (-5, -2) C. (2, 5) D. (5, 2)

Mathematics

Solve the problem.A cup of coffee is heated to 194° and is then allowed to cool in a room whose air temperature is  After 11 minutes, the temperature of the cup of coffee is  Find the time needed for the coffee to cool to a temperature of 102°. Assume the cooling follows Newton's Law of Cooling:   U = T + (Uo - T)ekt.(Round your answer to one decimal place.)

A. 15.1 minutes B. 26.4 minutes C. 29.7 minutes D. 41.1 minutes

Mathematics