Simplify the expression -4x2(3x − 7) answer is either -12x^3 + 28 -12x^3 + 28x^2 -12x^3 − 28 -12x^3 − 28x^2

The empire state building in new york city is 1454 feet tall a model of a building is 24 inches tall what is the ratio of the height of the model to the height of the actual empire state building

Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.

If jobs arrive every 15 seconds on average, what is the probability of waiting more than 30 seconds?