a state offers two lottery games. winone and playball. both games cost $2 per ticket.
• in winone the player picks a single letter from a to j and a single digit from 0 to 9. if both the letter and the digit match the letter and the
digit picked on that day, the player wins $150
• in playball, the player picks a single letter from a to tand a single digit from 0 to 9. if both the letter and the digit match the letter and the
digit picked on that day, the player wins $280.
if the cost of a playball lottery ticket were changed to $1 and the prize to $250, what would the expected value be?
a $0.85
b5025
c. $025
d $0.75

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

y= 2x+7

changed to y= 5x +7

as slope is increased from 2 to 5

therefore it would be less steeper

so, option d) is correct

none of these

step-by-step explanation:

23 + 34 add up to 57 so just inform the teacher of this really stupid mistake

you are having disney spells!