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riadik2000 [5.3K]
3 years ago
14

An auction website charges $1 for a bid. The bidding starts at 1¢ and goes up 1¢ at a time. A television that is worth $2000 is

won, on average, with a bid of $160. You make one bid at random. Find the expected value of the outcome of the bid. (Write as an exact decimal, with a negative sign, if necessary.)
Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
3 0
This is fairly complex, but looks like fun. 
So first lets count how many bids are made till the bidding goes up to 160.
That is 100*160=16000
How much will be your random bid. Each bid has equal chance so it is the avarge of all bids. (1cent + 160dollars)/2 = 80dollars (rounded)
What is your chance of winning: 1 bid wins out of 16000 so 1/16000.
When you win your profit is 2000-80dollars=1920
1920/16000= 0.12 dollars 
You entering the bidding costs 1 dollar and your average win is 0.12
This the outcome is 0.12-1=-0.88 dollars
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kirill [66]

Answer:

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denpristay [2]

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Step-by-step explanation:


8 0
3 years ago
Find the perimeter of the triangle defined by the coordinates (7, 1), (-6, 1), and (10, 6). (Round to nearest tenth)
matrenka [14]

Answer:

35.6\ units

Step-by-step explanation:

we know that

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Let

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the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

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substitute in the formula

d=\sqrt{(1-1)^{2}+(-6-7)^{2}}

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d=\sqrt{(6-1)^{2}+(10+6)^{2}}

d=\sqrt{(5)^{2}+(16)^{2}}

dBC=16.8\ units

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d=\sqrt{(6-1)^{2}+(10-7)^{2}}

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Find the perimeter

P=dAB+dBC+dAC

P=13+16.8+5.8=35.6\ units


4 0
3 years ago
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