I need some help with this, please. Two tons of sand are put into 100-pound bags. Each bag sells for $15.00. How much is all the
1 answer:
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Answer:
A
Step-by-step explanation:
Given
x² = 16 ( take the square root of both sides )
= ±
← note plus or minus sign
x = ± 4
Since 4² = 4 × 4 = 16 and
(- 4)² = - 4 × - 4 = 16