Write each whole number in expanded form.50,390
A. 5000 + 30 + 9
B. 50,000 + 300 + 90
C. 5000 + 300 + 9
D. 50,000 + 3000 + 90
Answer: B
Mathematics
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Find the sum if it exists.
A. 
B. 
C. 
D. 
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Convert the polar equation to a rectangular equation.r = 
A. y2 = 2x + 1 B. x2 = 2y + 1 C. y2 = -2x + 1 D. x2 = -2y + 1
Mathematics
Write the number 
in decimal notation.
A) 0.0774 B) 7,740 C) 0.00774 D) 774 E) 0.774
Mathematics
Simplify.(
+ 3)(
- 3)
A. -4
B. 2
C. 14
D. 5 - 2
Mathematics