Multiply.(7x + 11y)2
A. 7x2 + 154xy + 121y2
B. 49x2 + 154xy + 121y2
C. 49x2 + 121y2
D. 7x2 + 121y2
Answer: B
Mathematics
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Find 
. Write the answer in polar form with the argument between 0° and 360°z1 = 10(cos 30° + i sin 30°), z2 = 5(cos 10° + i sin 10°)
A. 5(cos 3° + i sin 3°) B. 2(cos 3° + i sin 3°) C. 2(cos 20° + i sin 20°) D. 5(cos 20° + i sin 20°)
Mathematics
Use this graph to answer the question.
MonthWhat were the sales in month 8 of 2010?
A. $50,000 B. $62,000 C. $64,000 D. $66,000
Mathematics
Write a numerical expression for the phrase and simplify it.The difference between one-third and three-fifths
A. 
- 
; - 
B. 
- 
; 
C. 
+ 
; 
D. 
÷ 
; 
Mathematics
Find the diameter of a circle if the radius has the value given.r = 23.5 yd
A. 47 yd B. 73.79 yd C. 11.75 yd D. 1734.07 yd
Mathematics