Find the surface area of the surface S.S is the cap cut from the sphere x2 + y2 + z2 = 49 by the cone z = 6
.
A. 98
?
B. 49
C. 49
?
D. 49
?
Answer: A
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Find all specified roots.Cube roots of 1.
A. 1, 
+ 
i, - 
+ 
i
B. -1, 1
C. 1, 
- 
i, - 
- 
i
D. 1, - 
+ 
i, - 
- 
i
Solve the problem.A collection of dimes is arranged in a triangular array, with 15 coins in the base row, 14 in the next, 13 in the next, and so forth. Find the value of the collection.
A. $1.20 B. $12.00 C. $24.00 D. $6.00
Solve the equation by completing the square.x2 - 12x - 5 = 0
A. {6 - 
, 6 + 
}
B. {6 - 
, 6 + 
}
C. {12 - 
, 12 + 
}
D. {-6 - 
, -6 + 
}
Solve the problem.The current I, in amperes, flowing through an ac (alternating current) circuit at time t, in seconds, is I = 30 sin(50?t)What is the amplitude? What is the period? Graph this function over two periods beginning at t = 0. 
What will be an ideal response?