The graph of a function f is given. Use the graph to answer the question.Use the graph of f given below to find f(-15).
A. -15
B. 0
C. 25
D. -10
Answer: B
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Find the product of the sum and difference of two terms.(x + 1)(x - 1)
A. x2 - 2x - 1 B. x2 - 1 C. x2 - 2 D. x2 + 2x - 1
Identify the row operation that produces the resulting matrix.
? 
A. -R1 + R2 ? R2 B. -R2 + R1 ? R2 C. R1 + R2 ? R1 D. R1 + R2 ? R2
Solve the problem.A loan officer at a bank has $80,000 to lend and is required to obtain an average return of 
per year. If he can lend at the rate of 
or the rate of 
how much can he lend at the 
rate and still meet his required return?
A. $1,160,000.00
B.
| $5333.33? |
C. $2857.14
D. $40,000.00
Provide an appropriate response.For any augmented matrix of a system of linear equations, which of the following row transformations will not necessarily result in a matrix of an equivalent system?(i)Adding to the elements of any row a multiple of the corresponding elements of another row.(ii)Interchanging any two columns.(iii)Multiplying the elements of any row by the corresponding elements of another row.(iv)Multiplying the elements of any row by any nonzero number.
A. (i), (iv) B. (ii), (iii), (iv) C. (ii), (iii) D. (ii)