John’s checking account had a balance of $126.79. he wrote a check for $75.10. which expression represents one way to calculate the balance in his account after the check was cashed? a. $126.79 + $75.10 b. $126.79 - (-$75.10) c. -$126.79 + $75.10 d. $126.79 + (-$75.10)

Given the statements, "a square root of 16 is 4," and "a square root of 9 is -3," complete the following blanks with the correct truth-values. p is and q is , so the statement, "a square root of 16 is 4 or a square root of 9 is -3" is .

Can (3,5 and square root 34) be sides on a right triangle?

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.