All of the following are rational numbers except
a. 2 over 3
b. 1.33 repeating
c. -16
d. 3.

Option D  

Step-by-step explanation:

we know that

Rational number is a number that can be made by dividing two integers

so

case A)

-----> is a rational number

Because can be made by dividing the integer by the integer

case B) repeating

-----> is a rational number

Because can be made by dividing the integer by the integer

case C)

-----> is a rational number

Because can be made by dividing the integer by the integer

case D)

-----> is not a rational number

Because can not be made by dividing two integers

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

175

step-by-step explanation:

2 inches x 10 miles = 200 miles - 3 inches = 175