1. If f'(x) = x² sin 2x, what is the first value of x where the graph of f(x) changes concavity on the interval (0,5).
A. 0
B. 1.144
C. 1.571
D. 3.412
E. 2.290

answer: the answer is c.

step-by-step explanation:

she’s dividing 1/3 of the flour into 2 jars.

hope this : )

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi

the answer is  

a.

28 ft2

step-by-step explanation: