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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 cookie recipe states for every 3 cups of flour, 1 1/2 teaspoons of vanilla are needed. How many teaspoons are needed for 5 cup
skad [1K]
3 / 1½ = 2 cups of flour per teaspoon

2x = 5
divide both sides by 2 to isolate x

x = 2.5

You need 2.5 teaspoons of vanilla for 5 cups of flour.
4 0
3 years ago
Which of the following can be used to find the volume of a rectangular prism with length 7.5 centimeters, width 2 centimeters, a
mart [117]

Answer:

  • C. V = 15 x 4.2
  • D. V = 7.5 x 2 x 4.2

Step-by-step explanation:

The volume is the product of the three dimensions, so can be figured as ...

  7.5 × 2 × 4.2 . . . . choice D

Carrying out the first multiplication, this will be equivalent to ...

  15 × 4.2 . . . . . . . . choice C

8 0
3 years ago
Please explain the problem attached
borishaifa [10]
<h3>Answer:</h3>

F (3x, 3y)

<h3>Explanation:</h3>

Dilation about the origin multiplies each coordinate by the dilation factor. For some coordinates (x, y), dilation by a factor of 3 means the new coordinates are ...

... 3×(x, y) = (3x, 3y)

_____

<em>Comment on the problem</em>

The way the problem is worded, you expect an answer choice that will be specific to the coordinates of point A. There are none.

Instead, the answer choices are generic, corresponding to dilation of a point (x, y) by a factor of 3, translation up and to the right by 3, dilation by a factor of 1/3, and translation down and to the left by 3.

8 0
4 years ago
AB=6CM AC= 12cm <br> calculate the length of CD
Brrunno [24]

AB=6cm AC=12cm

AC² = AB + BC²

12² = 6² + CB²

CB² = 12² - 6²

CB² = 144 - 36

CB² = 108

CB = √ 108 cm.

sin 55° = CB / CD

0.81915 = √108 / CD

CD = 10.392 / 0.81915

CD = 12.686 cm

7 0
4 years ago
Read 2 more answers
Calculate the value of 5÷ 1+2 x 3​
Allisa [31]

Answer:

the answer's 11

4 0
3 years ago
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