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sergij07 [2.7K]
3 years ago
15

a company selling light bulbs claims in its advertisements that its light bulbs’ average life is 1000 hours. In fact, tte lifesp

an of these light bulbs is normally distributed with a mean of 1000 hours and a standard deviation of 100 hours. Use this information to answer Parts A and B below. ANSWER NOW FOR THE BRAINLIEST!!!!!!
Mathematics
1 answer:
Phantasy [73]3 years ago
5 0

Answer:

you didn't provide the parts A and B

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Kendra earns $11.60 per hour working at the movie theater. Each week, she donates of
stich3 [128]

Answer:

$9.86

Step-by-step explanation:

First, write both numbers in the same form. Convert 8

1

2

to a decimal.

8

1

2

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1

2

= 8+

1×5

2×5

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5

10

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= 8.5

Multiply.

11.6

× 8.5

580

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98.60

Kendra earned $98.60 last week.

Now multiply to find how much money Kendra donated to the charity last week. She earned $98.60, and she donates  

1

10

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First, write both numbers in the same form. Convert  

1

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Multiply.

98.6

× 0.1

9.86

Kendra donated $9.86 to the charity last week.

7 0
4 years ago
14. The prime factorization of a number is
NikAS [45]

Answer:

See below.

Step-by-step explanation:

The number = 5 * 7 * 23.

5  * 7 = 35 must therefore also be a factor.

If we divide the number by 35 we get 23!.

4 0
3 years ago
Marcus said the product of 7/8 × 1 3/4 is 9/4.<br><br> How can you tell that his answer is wrong?
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Gravity simply does not allow that
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Sharina simplified the expression 3(2x – 6 – x + 1)2 – 2 + 4x. In Step 1 she simplified within the parentheses. In Step 2 she ex
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3x^2 - 42x + 147 - 2 + 4x
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A number decreased by 25
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It would be for example:  f-25
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