Use the substitution method to solve the system.-7x - 6y = -28-3x + 2y = -12
A. (4, 1)
B. (4, 0)
C. (3, 1)
D. No solution
Answer: B
Mathematics
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Simplify the absolute value expression.-
A. does not exist B. 1 C. -1 D. 0
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Evaluate the function as indicated.Find f( 2) when f(x) = 
.
A. 
B. 
C. 
D. 
Mathematics
Determine whether the equation defines y as a function of x.y = x2 - 5
A. Yes B. No
Mathematics
Solve the problem.Given the area A of a circle, the formula 
can be used to calculate the radius of the circle. Rewrite the formula by rationalizing the denominator.
A. r = 
B. r = 
C. r = ? 
D. r = 
Mathematics