Lightbulbs act as resistors. Janine is building a circuit that contains two lightbulbs in parallel. One of the lightbulbs has a resistance of 120 ohms, but the resistance of the second lightbulb is unknown. She models the total resistance in the
circuit, t, with this equation, in which r represents the resistance of the second lightbulb.
t = 120r/ r + 120

Find the inverse of Janine's equation.

r=

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

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the