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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Write a mathematical expression for the word phrase.7 more than twice 4.3
A. 2(7) + 4.3 B. (2 ÷ 4.3) + 7 C. 2(4.3) - 7 D. 2(4.3) + 7
The sequence is defined recursively. Write the first four terms.a1 = 5 and an = 2an-1 for n ? 2
A. 5, 12, 22, 42 B. 5, 10, 20, 40 C. 8, 16, 32, 64 D. 5, 9, 8, 7
Find the inverse of A if it has one, or state that the inverse does not exist.A = 
A. 
B. 
C. Inverse does not exist
D. 
Use the substitution method or the elimination method to solve the system. If the system has infinitely many solutions, express the ordered pair in terms of x or y. 6x + y = 7-18x - 3y = -21
A. 
or (y, -6y + 7)
B. (x, -6x + 7) or 
C. no solution
D. (x, 6x + 7) or 