Evaluate

using the given value
a = 1, b = 7, c = 4

Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?

Apack of gum would be considered a(n) necessity luxury item small ticket item unaccountable expense