Solve the problem.Find the moment of inertia about the x-axis of the lamina bounded by the coordinate axes and the line 
if 
.
A. Ix ? 
B. Ix ? 864
C. Ix ? 
D. Ix ? 
Answer: C
Mathematics
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Solve the problem.Suppose a manufacturer finds that the cost y of producing x units is given by a formula of the form 
If it costs $8200 to produce 20 units and $14,500 to produce 50 units, what is the marginal cost?
A. $410 B. $4000 C. $210 D. $290 E. none of these
Mathematics
Write the first four terms of the sequence.an = n2 - 6
A. a1 = -5, a2 = -2, a3 = 9, a4 = 10 B. a1 = 6, a2 = 9, a3 = 15, a4 = 22 C. a1 = -5, a2 = -2, a3 = 3, a4 = 10 D. a1 = -5, a2 = -3, a3 = 3, a4 = 10
Mathematics
Find the eccentricity of the conic section shown in the graph.x = - 
A. e = 1
B. e = 3
C. e = 2
D. e = 
Mathematics
Decide whether the equation is or is not an identity.tan A + tan B = 
A. Identity B. Not an identity
Mathematics