The circle in the figure below has a radius of r and center at C. The distance from A to B is x, the distance from A to D is y, and the length of arc BD is s. For the following problem, redraw the figure, label it with the values given, and then solve.
?
If 
and 
, find x.
?
Apply the rules regarding the use of significant digits after all computations are complete.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: B
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Tell whether the equation determines y to be a function of x.
A. no B. yes
Perform the indicated operation.The voltage E (in V) in a circuit with a battery of resistance R , a current i, and an inductance L, is 
, where t is the time after the circuit is closed. Find E for R = 1.238 ?, i = 0.00152 A, L = 3.287 H, and t = 0.00600 s to three significant digits.
A. 0.000940 B. 0.000942 C. 0.834 D. -0.832
Decide whether the sets are equal.{6, 12, 18, 24, 48} and {6, 12, 18, 24, ..., 48}
A. Yes B. No
Find the quotient and write in rectangular form. First convert the numerator and denominator to trigonometric form.
A. - 
i
B. 
+ 
i
C. 
D. - 
- 
i