(Choose all that apply): Find the exact and approximate volume for the sphere below. Round to the nearest hundredth (two decimal places), and use π = 3.14 to find the approximate volume of the sphere. 37.33π yd³
2143.57 yd³
117.23 yd³
682.67π yd³

Find the area of a trapezoid with bases 14 cm and 18 cm and height 10 cm. 160 cm2 140 cm2 180 cm2 126 cm2

What is the period of the sinusoidal function ?

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