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a particular company's net sales, in billions, from 2008 to 2018 can be modeled by the expression t2 + 12t + 74, where t is the number of years since the end of 2008. what does the constant term of the expression represent in terms of the context?

the company earned 74 billion dollars from 2008 to 2018.
the company earned 12 billion dollars from 2008 to 2018.
the company earned 74 billion dollars in 2008.
the company earned 12 billion dollars in 2008.

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5