. A company is closing one of its two stores and will combine all the inventory from both stores. These polynomials represent the inventory in each store:

Store A: 7 + 10r
2
− r

Store B: 5r
2
− 19 − 7r

Which expression represents the combined inventory of the two stores?

How do you write something in scientific notation?

What is the volume of this container?

Agroup of student volunteers participates in a study designed to assess several behavioral interventions for improving output in a repetitive task. prior to the beginning of the study, all volunteers unknowingly observed, and their output is measured. at the beginning of the study, prior to any intervention, the volunteers perform the same task under the observation of a study administrator, and their overall output increases. which of the following terms describes this phenomenon? a. simpson's paradox b. hawthorne effect are d. novelty effect d. pygmalion effect e. observer-expectancy effect