Solve area problem.A rubber ice-hockey puck has a 3.4 in. diameter. What is the area of one flat surface?(Use 3.1 4 for ? .)
A. 10.676 in.2
B. 36.2984 in.2
C. 4.5373 in.2
D. 9.0746 in.2
Answer: D
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Decide whether the statement is true or false.If the coordinates of one endpoint of a line segment are (a, b) and the coordinates of the midpoint of the segment are (p, q), then the coordinates of the other endpoint are (2p-a, 2q-b).
A. True B. False
Solve the problem.Bathing suits are often on sale in July. The regular price of one suit is $28. With a 45% discount, what is the sale price of the suit?
A. $14.40 B. $16.40 C. $12.60 D. $15.40
Find A-1 then use it to find the solution to the system.
A. A-1 = - 
; x = - 
, y = - 
, z = 
B. A-1 = - 
; x = 
, y = 
, z = - 
C.
A-1 = -   ; | x =  , y =  , z = -  |
D. A-1 = -
; x = 
, y = 
, z = - 
Use the formula for the sum of the first n terms of a geometric sequence to evaluate the sum.
A. 54 B. 85 C. 682 D. 170