Which of these shapes have rectangular cross sections when they are cut perpendicular to the base? Select three options, rectangular prism
triangular prism
cylinder
cone
square pyramid
triangular pyramid
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Evaluate the integral. (sec2(t) i t(t2 1)8 j t7 ln(t) k) dt

Icould really use some with this question.

What is the probability of throwing several dice with sum equal to 6 (six)? show the ways of possibilities for sum 6 (as the numerator) and the ways of throwing n dices for n = 1, 2, 3, 4 or 5 as denominator for all the questions to earn full credits. (a)throw one die, (b) throw two dice, (c) throw three dice (d) throw 4 dice, (e) throw 5 dice