(1, -2) because the expression inside the square root must be > or = 0. The square root of a negative number is imaginary complex numbers.
x - 1 = 0
x = 1
then y = -2
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Answer:
See below in bold.
Step-by-step explanation:
Round 492 to 500, then
estimate is 500/50 = 10.
Annabelle could arrange her blocks in one row of 42 building blocks as 1 times 42 = 42.
She could also arrange her blocks in 2 rows of 21 blocks because 2 times 21 is also 42.
