Find the dot product v ? w.v = i - 
j,
w = 7i + j
A. -7 - 
B. 7 + 
C. 7 - 
D. -10
Answer: C
Mathematics
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Solve the equation.x2/5 - x1/5 - 12 = 0
A. {1024, -243} B. {4, -3} C. {-1024, 243} D. {-4, 3}
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Find the root if it is a real number.
A. 
B. 
C. 
D. 3
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Explain why the given linear programming problem is not in standard form.Maximize x + 3y subject to 
What will be an ideal response?
Mathematics
Solve the problem.A person standing close to the edge on top of a 256-foot building throws a baseball vertically upward. The quadratic equation 
models the ball's height above the ground, s, in feet, t seconds after it was thrown. After how many seconds does the ball reach its maximum height? Round to the nearest tenth of a second if necessary.
A. 2 seconds B. 1.5 seconds C. 6.5 seconds D. 320 seconds
Mathematics