Find the length of the arc on a circle of radius r intercepted by a central angle ?. Round answer to two decimal places.r = 10 centimeters, ? = 70°
A. 11 centimeters
B. 12.22 centimeters
C. 9.78 centimeters
D. 13.44 centimeters
Answer: B
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Solve the problem.The shape and density of a thin shell are indicated below. Find the moment of inertia about the z-axis.Shell: portion of the cone x2 + y2 - z2 = 0 between z = 2 and z = 3Density: ? = 1
A. Iz = 
?
B. Iz = 65?
C. Iz = 65
D. Iz = 
State whether the common form of the argument is valid or invalid and give a reason. p ? q
? p ? r
A. Valid, transitive reasoning B. Valid, direct reasoning C. Invalid, misuse of disjunctive reasoning D. Invalid, misuse of transitive reasoning
Provide an appropriate response.Let A be a 3 × 2 matrix. Write a matrix B such that AB can be found.
What will be an ideal response?
Factor the trinomial completely.12x3 + 25x2 + 12x
A. x(12x + 1)(x + 12) B. x(4x - 3)(3x - 4) C. x(4x + 3)(3x + 4) D. (12x2 + 3)(x + 4)