Find the surface area of the triangular prism shown below.
2 answers:
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So I am assuming that there is a 20% off sale on an item that is 20$.
Edit: I read the question wrong, the 2nd thing I wrote down is the correct answer, it will be $24 after the markup.
Edit: I read the question wrong, the 2nd thing I wrote down is the correct answer, it will be $24 after the markup.
The angle sum identity for cosine says that
because
and 
.
because
(1).probability of getting a red marble is.
total number of red marble is 2.
total number of marble is 10.
(2). probability of getting a blue marble is
total number of blue marble is 3.
total number of marble in bag is 9