What is the difference between congruence and equality?

See below.

Step-by-step explanation:

In Geometry, an item is equal only to itself.

Congruence means the lengths of segments or measures of angles are equal. Congruence of polygons means the dimensions are equal.

Two different segments that have the same length are not equal to each other since they are different segments. Since their lengths are equal, the segments are congruent.

Congruence is a relationship of sizes and shapes, such as segments, triangles, and geometrical figures, while equality is a relationship of sizes, such as heights, widths, and lengths.

Step-by-step explanation:

Congruence deals with objects, while equality deals with quantities.

Ex: You do not say that two shapes are equal or two numbers are congruent.

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part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.