Use an associative property to complete the statement. Do not simplify.(-6 + m) + 6 = 
A. 6 + (-6 + m)
B. -6 + (m + 6)
C. (m - 6) + 6
D. -6m + 6
Answer: B
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Find the moment or center of mass of the wire, as indicated.Find the moment about the y-axis of a wire of constant density that lies along the curve y = x2 from 
to
A. 
B. 
C. 
D. 2
The graph below is one complete cycle of the graph of an equation containing a trigonometric function. Find an equation to match the graph. If you are using a graphing calculator, graph your equation to verify that it is correct.
?
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Solve the problem.A plane flying a straight course observes a mountain at a bearing of 34.8° to the right of its course. At that time the plane is 
from the mountain. A short time later, the bearing to the mountain becomes 44.8°. How far is the plane from the mountain when the second bearing is taken (to the nearest tenth of a km)?
A. 7.4 km B. 3.2 km C. 4.9 km D. 8.2 km
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = - 
, 
< ? < 2?Find cos 
.
A. - 
B. 
C. -
D. 