Find a row echelon form or a reduced row echelon form, as indicated, for the given matrix.Find a reduced row echelon form for the matrix.
What will be an ideal response?
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Simplify.
A. 
B. 
C. 
D. 
Solve the problem.A yoga studio will offer a workshop provided that at least 20 people sign up. Beginning students require more attention than experienced students and the number of assistants in the class will be limited to three. For this reason, the teacher would like the number of experienced students to be at least twice the number of beginners. Set up and graph a system of inequalities for the situation, letting x represent the number of beginning students and y the number of experienced students. 
A. x + y ? 20
y ? 2x
B. x + y ? 20
y ? x + 2
C. x + y ? 20
y ? 2x
D. x + y ? 20
y ? 2x
Find the missing length to the nearest tenth.
A. b = 3.3 m B. b = 429 m C. b = 28.7 m D. b = 20.7 m
A test has five true-false questions. In how many different ways can the answers be given to the five questions?
What will be an ideal response?