The function a(b) relates the area of a trapezoid with a given height of 12 and one base length of 9 with the length of its other base. it takes as input the other base value, and returns as output the area of the trapezoid. a(b)=12•b+9/2. which equation below represents the inverse function b(a), which takes the trapezoid’s area as input and returns as output the length of the other base?

An electronics manufacturer wants to know if customers would be interested in a detachable keyboard for their tables and if so, what the most important features would be. the manufacturer partners with an electronics store to include copies of the survey with every purchase at that store for one week. which of the following best explains why this random sample is unlikely to be a good representative sample of tablet owners' preferences for a detachable keyboard? a) one week is likely not enough time to get a large enough sample. b) most people won't bother to send in the survey, which is likely to skew the results c) there is no way to verify whether the responders to the survey actually own a tablet d) the survey is biased because it was conducted through an electronics store, not the general population

Describe all the numbers that when rounded to the nearest thousand are 645,000

Multiplying an even number of negative numbers gives an answer that is choose from: