Simplify.
+ 
+ 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Use power regression to model the following data. Use two digits of accuracy for the coefficient and for the power. x 1 3 4 7 8 y 4.46 14.74 21.68 44.5 54.31?
A. 
B. ?
C. ?
D. ?
Mathematics
Factor completely.49k3m + 70k2m2 + 25km3
A. km(7k + 5m)(7k - 5m) B. km(7k - 5m)2 C. km(7k + 5m)2 D. Prime
Mathematics
Graph the inequality.
+ 
? 1
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A searchlight is shaped like a paraboloid of revolution. If the light source is located 3 feet from the base along the axis of symmetry and the opening is 10 feet across, how deep should the searchlight be?
A. 6.3 feet B. 0.5 feet C. 8.3 feet D. 2.1 feet
Mathematics