Tell whether the angle is acute, right, obtuse, or straight.
A. Acute
B. Straight
C. Obtuse
D. Right
Answer: C
Mathematics
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Solve the problem.Find the moment of inertia about the z-axis of a thick-walled right circular cylinder bounded on the inside by the cylinder r = 1, on the outside by the cylinder r = 2, and on the top and bottom by the planes 
A. 30? B. 60? C. 15? D. 32?
Mathematics
Solve.log5x = -2
A. 
B. {-10}
C. 
D. {3}
Mathematics
Write true or false for the statement.The sum of the measures of the angles in a triangle is 90°.
A. True B. False
Mathematics
Simplify. Express the answer using positive exponents.
A. t3 B. t11 C. t-11 D. t-3
Mathematics