Multiply.-7 ? (-4)
A. -35
B. 32
C. 35
D. 28
Answer: D
Mathematics
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Provide an appropriate response.Simplify and express your answer in terms of positive exponents: 
What will be an ideal response?
Mathematics
The matrix is the final matrix form for a system of two linear equations in variables x1 and x2. Write the Solution of the system.
A. x1 = 3 x2 = 5 B. x1 = -5 x2 = -3 C. x1 = 5 x2 = t for any real number t D. x1 = 5 x2 = 3
Mathematics
For the function, find the average rate of change of f from 1 to x: 
f(x) = x3 + x
A. 
B. 1
C. x2+ x + 2
D. x2+ 2
Mathematics
Solve the logarithmic equation 
Approximate the result to three decimal places.
a. 
b. 
c. 
d. 
Mathematics