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SVEN [57.7K]
3 years ago
11

One state lottery has 900 prizes of $1; 145 prizes of $10; 30 prizes of $60; 5 prizes of $325; 2 prizes of $1,110; and 1 prize o

f $2,800. Assume that 34,000 lottery tickets are issued and sold for $1.
a. What is the lottery's expected profit per ticket?
b. What is the lottery's standard deviation of profit per ticket?

Mathematics
1 answer:
Readme [11.4K]3 years ago
5 0

Answer:

Step-by-step explanation:

The detailed step by step calculation is as shown in the attached file

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A plank of wood is 220 cm long.I cut it in 14cm pieces. what lenght of wood i will have left over?
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The required Length is 10cm.

What is length?

  • Length is a measure of distance. In the International System of Amounts, length is a volume with dimension distance. In utmost systems of dimension a base unit for length is chosen, from which all other units are deduced.
  • Length is generally understood to mean the most extended dimension of a fixed object. still, this isn't always the case and may depend on the position the object is in.
  • Varied terms for the length of a fixed object are used, and these include height, which is the perpendicular length or perpendicular extent, and range, breadth, or depth. Height is used when there's a base from which perpendicular measures can be taken. range or breadth generally relates to a shorter dimension when the length is the longest one.

220 / 14 gives us 15.

You have to understand that this means 15 whole 14 cm pieces and a Length of 1 piece.

thus 14 * 15 = 210

So 220- 210 = 10

where you know 220- 210 is< 15

Hence, The correct Length is 10cm.

Learn more about Length here:

brainly.com/question/2217700

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What is the domain of the function =<br> x+6-7?<br> x2-7<br> X2-6<br> x26<br> Ox27
Keith_Richards [23]

The domain of the function is 27 i am 100% sure

8 0
3 years ago
A contractor bought 7.6 ft squared of sheet metal. She has used 4.9 ft squared so far and has ​$43.20 worth of sheet metal remai
Karo-lina-s [1.5K]

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$16 per square foot

Step-by-step explanation:

6 0
3 years ago
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Find the solution to the system of equations x + y = 9 and x - y = -1.
Galina-37 [17]

Answer:

(4, 5 )

Step-by-step explanation:

x + y = 9 → (1)

x - y = - 1 → (2)

adding the 2 equations term by term will eliminate y

2x + 0 = 8

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substitute x = 4 into either of the 2 equations and solve for y

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6 0
2 years ago
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What is the radius of the cone?
gayaneshka [121]

Answer:

r = 6 in

Step-by-step explanation:

V = \pi r^{2} \frac{h}{3} = 216\pi

r²h/3 = 216

r² (18/3) = 6 r² = 216

r² = 216/6 = 36

r = 6

3 0
2 years ago
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