Answer:
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.
A) $2.42, $2.33, $2.58
B) The best deal is 24 cupcakes for $56
<em><u>Choice 3.</u></em>.. 2x + 3 =y
Answer: 15