The tree diagram shows the sample space of two-digit numbers that can be created using the digits 2,1, 8, and 9. What is the probability of choosing a number from the sample space that contains 1 or 9? Click the icon to view the tree diagram. P(1 or 9) = or % possible outcomes, which are There are possible outcomes that include 1 or 9. There are equally likely (Type integers, fractions, or mixed numbers.) ​

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.

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

Factor the trinomial below. 12x^2 - 32x - 12 a. 4(3x+3)(x-1) b. 4(3x+1)(x-3) c. 4(3x+6)(x-2) d. 4(3x+2)(x-6)