Find the centroid of the region bounded by the given curves.The region bounded by the parabola y = 9 - x2 and the x-axis
A. 
= 
, 
= 0
B. 
= 0, 
= 
C. 
= 0, 
= 
D. 
= 0, 
= 
Answer: C
Mathematics
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Solve the equation using the quadratic formula.x2 - 3x + 11 = 0
A. 
and 
B. 3 + 
and 3 - 
C. No real solution
D. 
and 
Mathematics
Use a graphing calculator to solve the equation. Round to two decimal places.3x = 13
A. 2.33 B. 0.43 C. 1.47 D. 4.33
Mathematics
Is the following correspondence a function?DomainRange 
A. function B. not a function
Mathematics
Solve the equation.
- 
= 5
A. {15}
B. 
C. {12}
D. {20}
Mathematics