If one side of a square has a length of 19 find the length of the square's diagonal. 1.
19
2.
19 square root of 2
3.
19 square root of 3
4.
4.5

2

Step-by-step explanation:

Using Pythagoras' theorem:

Length of diagonal = √(side² + side²)

Since the square has equal sides of length 19,

Length of diagonal = √(19² + 19²) = √(2)(19²) = 19√2

Hence option 2 is correct.

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step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)