Answer the question.To complete the square from an equation in the form x2 - ax = b, is it ever appropriate to subtract a positive number from each side?
What will be an ideal response?
No. When completing the square, half the coefficient of the linear term is squared. Thus, the number added to both sides is always positive.
Mathematics
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Solve the equation.
p - 
p = 5
A. -200 B. 40 C. 200 D. -40
Mathematics
Find the unit vector having the same direction as v.v = 4i + 3j
A. u = 
i + 
j
B. u = - 
i - 
j
C. u = 
i + 
j
D. u = 20i + 15j
Mathematics
Find the derivative.y = 4ex2
A. 8xe4x2 B. 8xe C. 8xe2x D. 8xex2
Mathematics
Suppose that y is directly proportional to x. Use the given information to find the constant of proportionality k. Then use y = kx to find y for the given value of x.y = 39 when x = 6;
Find y given x = 12.
A. k = 6.5; y = 78
B. k = 234; y = 
C. k = 6.25; y = 75
D. k = 6.5; y = 90
Mathematics