Provide an appropriate response.Only one of the following augmented matrices of a linear system is in a reduced form. Choose the matrix that is in reduced form.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Perform the operations indicated. Write your answer in simplest form.-3 + (-18)
A. -21 B. -15 C. 15 D. 21
Mathematics
Solve.Approximately 8 × 103 employees of a certain company average $30,000 each year in salary. What is the total amount earned by all the employees of this company per year? Write your answer in scientific notation.
A. $2.4 × 108 B. $24 × 109 C. $24 × 108 D. $2.4 × 109
Mathematics
Graph the function.f(x) = (x - 3)2 
A. 
B. 
C. 
D. 
Mathematics
Find the area of the region under the given curve 
over the indicated interval.
?
?
A. 2 sq units B. 5 sq units C. 6 sq units D. 7 sq units
Mathematics