Suppose a normal distribution has a mean of 79 and a standard deviation of 7. What is P(x293)?
A. 0.16
B. 0.975
C. 0.025
D. 0.84

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.

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol