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SashulF [63]
3 years ago
10

According to the Federal Communications Commission, 70% of all U.S. households have vcrs. In a random sample of 15 households, w

hat is the probability that the number of households with vcrs is between 10 and 12
Mathematics
1 answer:
jeka57 [31]3 years ago
4 0
.59479
59.5%


2020202020
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prohojiy [21]
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3 0
3 years ago
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olasank [31]

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3 years ago
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
babymother [125]

Answer:

Answer:

Total number of cards = 32(4) or y=32(4)

Roberto had 128 cards.

Step-by-step explanation:

Consider the provided information.

Part (A)

He gave his four friends 32 baseball cards each.

Let the number of cards he have before giving them to his friends is y.

This can be written as:

y = 32(4)

Part  (B)

Now solve the above equation as shown.

y = 32(4)

Multiply 32 with 4

y = 128

Hence,  Roberto had 128 cards.

4 0
4 years ago
8(x-1) - 3x(4-x) + 6 (x+2) - 3. How can I simplify this?
Mrrafil [7]

Use the distributive property. For the first set of parenthesis, multiply everything inside by 8. This gets you to 8x-8.

Next set: Everything inside by 3x: 12x+3x^2.

Next set: Everything inside by 6: 6x+12.

Put it all together: 8x-8-12x+3x^2+6x+12-3.

Combine like terms: 2x+1+3x^2

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4 years ago
What number is equivalent to the number shown?
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Answer:

Step-by-step explanation:

Since the exponent of the scientific notation is positive, move the decimal point  

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390000

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