Write the expression in lowest terms.
A. 
B. 
C. - 
D. 
Answer: D
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Provide an appropriate response.A student is solving the equation s2 = 102 and has determined that s = 10. He or she has looked up the answer in the back of the book and finds that s = -10 is also a solution. The student feels that this is a misprint. How would you advise him or her?
What will be an ideal response?
Solve the problem.The table shows the number of deaths due to car accidents in a certain city in various years. 
Let f(t) be the number of deaths due to car accidents at t years since 2012. Suppose that you wish to model f using a quadratic equation. What is the vertex of the model? What does it mean in this situation?
A. (0, 202); the smallest number of deaths due to car accidents was 202 in 2012 B. (2, 261); the largest number of deaths due to car accidents was 261 in 2014 C. (3, 270); the largest number of deaths due to car accidents was 270 in 2015 D. (5, 219); the smallest number of deaths due to car accidents was 219 in 2017
Solve the equation.m2 + 10m + 15 = 0
A. {-10 + 
, -10 - 
}
B. {5 + 
, 5 - 
}
C. {-5 + 
, -5 - 
}
D. {5 + 
, 5 - 
}
Find a unit vector u in the direction of the given vector.
A. 
B. 
C. 
D. 