Subtract.8579 - 144
A. 8435
B. 8427
C. 435
D. 8347
Answer: A
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Solve the given differential equation.4y" + 20y' + 25y = 0
A. y = (c1 + c2x)e5x/2 B. y = (c1 + c2x)e-5x/2 C. y = c1e-5x/2 + c2 D. y = ce-5x/2
In the Lambdin and Preston (1995) study of the implementation of Connected Mathematics Project materials, which group of teachers generally did NOT have strong mathematics content knowledge?
a. Standards bearers b. Teachers on the grow c. Frustrated methodologists d. All of the above e. None of the above
Simplify the expression. Assume all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Determine whether the lines through each pair of points are parallel, perpendicular, or neither.(-9, 9) and (7, 21); (-5, 7) and (1, 15)
A. parallel B. perpendicular C. neither