Solve the quadratic equation by any method.
x2 + x + 
= 0
A. -7 ± 
B. -14 + 
C. 7 + 
D. 7 ± 
Answer: A
Mathematics
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What will be an ideal response?
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Write as a percent.0.8
A. 0.08% B. 80% C. 800% D. 0.8%
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Determine graphically the x-value when y = 6 in the given equation.y = -2x
A. -3;
B. -12;
C. -2;
D. 6;
Mathematics
Solve the problem.A rock falls from a tower that is 73.5 m high. As it is falling, its height is given by the formula 
How many seconds will it take for the rock to hit the ground 
Round to the nearest tenth, if necessary.
A. 3.9 sec B. 8.3 sec C. 1102.5 sec D. 8.6 sec
Mathematics