Select the right expression for the following sum and prove that your statement is true for all natural numbers n.
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A. ?
B. ?
C. ?
D. ?
Answer: B
Mathematics
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Find the equation of the line of best fit from the data in the table. Round the slope and the y-intercept to the nearest hundredth.
A. y = 3.0x + 0.15 B. y = 2.8x C. y = 3.0x D. y = 2.8x + 0.15
Mathematics
Write fractions to represent the shaded and unshaded portions of the figure.
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Mathematics
Decide whether the statement is true or false. If it is false, tell why.The equation (x + 20)2 = 0 has exactly one real solution.
A. True B. False; the equation has two real solutions. C. False; the equation has no real solutions.
Mathematics
You are given the probability that an event will happen. Find the probability that the event will not happen.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics