6. Mary got an answer of about 5.82 when she entered 26 on her calculator and pressed the square root key. As usual, she stopped to think briefly about whether or not the answer was reasonable. Which is the most likely explanation for Mary to believe that her calculator's answer is or is not reasonable?

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?