Select the correct answer.
In a given chemical reaction, the energy of the products is less than the energy of the reactants. Which statement is true
reaction?
A Energy is absorbed in the reaction.
B. Energy is released in the reaction.
C There is no transfer of energy in the reaction.
D. Energy is lost in the reaction.

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

1. what is the measure of ∠abc? what is the measure of ∠abd?

Simplify (8x2 − 1 + 2x3) − (7x3 − 3x2 + 1). −5x3 + 11x2 − 2 5x3 − 11x2 + 2 x3 + 2x2 + x3 x3 − 2x2 − x3