Produto carteziano de a={ 1,5,6} por b={2,3,5}, ou seja a#b

Which of the following is an essential element of a strong informative/explanatory text? a. it expresses an opinion on a topic. b. it has a clear organizational structure. c. it uses text features, such as headings. d. it includes graphic elements, such as images.

Question 2(multiple choice worth 5 points) (mc) in which instance would it be most to include headings or sub headings in an essay? a descriptive essay that is fairly easy to follow a short essay that focuses on an upsetting topic an essay on a topic that calls for a long discussion an essay that is about a very familiar topic

What would be the mass of an atom with 8 protons and 8 neutrons? a) 16 amu b) 8 amu c) 64 amu