Identify the solid.
A. pyramid
B. rectangular solid
C. sphere
D. cone
Answer: A
Mathematics
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Find the mass of the wire that lies along the curve r and has density ?.r(t) = 7i + (8 - 3t)j + 4tk, 0 ? t ? 2? ; ? = 8(1 + sin 4t)
A. 80? units B. 40 + 80? units C. 20 + 80? units D. 16? units
Mathematics
Provide an appropriate response.Solve: 
= 1
A. 1.73 B. 2 C. 1.5 D. 1
Mathematics
Provide an appropriate response.Solve:x2(x2 - 9) < 0
What will be an ideal response?
Mathematics
Solve.A brother and sister split the $1,056,000 from the sale of their parent's house. According to the will, the sister was to receive 20% more than her brother, for having managed the property. How much money did the sister receive?
A. $576,000 B. $211,200 C. $480,000 D. $5,280,000
Mathematics