The weight w of a lake michigan brown trout varies directly with the cube of its length l. a 25 inch
fish weighs two pounds. write an equation with a constant of variation k that expresses this variation
and use the given data to determine the value of k. also predict the weight of a 38 inch brown trout.

answer:

x would be equal to 1

step-by-step explanation:

answer:

the radius is 5 in

step-by-step explanation:

the area of a circle is given by the formula

a = pi *r^2

we know the area   = 78.5 in^2   (volume would be in^3   area is in^2)

78.5 = 3.14*r^2

divide each side by 3.14

78.5/3.14 = 3.14/3.14*r^2

25 = r^2

take the square root of each side

sqrt(25) sqrt(r^2)

5 =r

answer:

step-by-step explanation:

the volume of a rectilinear shape is given by

  v = w·l·h . . . where w, l, and h represent width, length, and height

filling in the given information, we want to find a solution to

  7.4 = x(x +0.4)(x -0.2)

if we write

  f(x) = x(x +0.4)(x -0.2)

then we're looking for the value of x that satisfies

  f(x) -7.4 = 0

the attached graph shows that value to be 1.897, about 1.9 (feet). then the desired kennel dimensions are