Solve by the method of your choice.x2 + 18x + 70 = 0
A. 9 ± 
B. 9 + 
C. -18 + 
D. -9 ± 
Answer: D
Mathematics
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Provide an appropriate response.
One end of a shaft 40 mm in diameter is milled as shown in the given figure. Find the radius of the smaller circle. 
A. 10 mm B. 5 mm C. 23.67 mm D. 20 mm
Mathematics
Solve the equation.
= 3
A. 11 B. 5 C. 24 D. 10
Mathematics
Solve the exponential equation. For irrational solutions, round to four decimal places.10 ? 5x = 22
A. {1.5440} B. {0.4899} C. {0.7901} D. {-0.8210}
Mathematics
Tell whether the relation is a function.
A. Function B. Not a Function
Mathematics