E the problem
13) In a milling operation, the thickness of the metal bars that can be produced satisfies the inequality
Ix-1.971 1.38. What range of thicknesses corresponds to this inequality?
A) (1.38, 1.971
B) (0.59,6.71
C)[0.3, 335)
D) 10.59.3.357

step-by-step explanation:

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below:

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .