Solve the equation by completing the square.3x2 + 6x = -1
A. 
B. 
C. 
D. ?
Answer: B
Mathematics
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Provide an appropriate response.A laptop case has an area of 150 in2. If the length is 5 in. more than the width, find the dimensions of the case.
A. width is 5 in.; length is 30 inches B. width is 15 in.; length is 20 inches C. width is 10 in.; length is 15 inches D. width is 6 in.; length is 25 inches
Mathematics
Find the center and the radius of the sphere that has the given equation.
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Mathematics
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
Mathematics
Provide an appropriate response.Are the two expressions equivalent? Explain your answer.
- 
and 
What will be an ideal response?
Mathematics