David is taller than chris, chris is shorter than anne, anne is as tall as sarah, sarah is shorter than david. who is the shortest?

This is a problem involving comparisons; when you have a problem like that, is a good idea to compare two things at the time.

Let's compare our subjects

- Since David is taller than Chris and Chris is shorter than Anne, Anne is shorter than David (or David is taller than Anne).

- Since Chris is shorter than Anne and Anne is as tall as Sarah, Chris is also Shorter than Sarah.

- Since Sarah is shorter than David and Chris is Shorter than Sarah, Chris is also shorter than David.

From the first and third sentences we can infer that Chris is shorter than David. From the second sentence we can infer that Chris is shorter than Anne. From the second sentence we can infer that Chris is shorter than Sarah. Chris is shorter than everyone!

We can conclude that the shorter person is Chris.

In addition, we can follow a similar pat to discover who is the tallest:

We already know that the shorter person is Chris; since Anne and Sarah are taller than David and David is taller than Anne and Sarah, David is the tallest person. Sarah and Anne tie in second place.

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

answer: answer is c!

ok i got to organize the

3/15 and 12/55

3*

aha

3*4 equals 12 but not

a: no

b:

8/24 12/35

no

gautie

it's c

5/18 = 25/90

5*5=25

18*5 = 90

hope that you!

one more happy customer!

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step-by-step explanation: