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kipiarov [429]
3 years ago
15

A box of LED light bulbs was tested to see how long the light bulbs last. The standard deviation of the light bulb lifetime

Mathematics
1 answer:
Anna71 [15]3 years ago
5 0

What are all the answers it’s har to see

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Plz any1 need help on this question
Andreas93 [3]

Since the intersection is - by definition - common to both sets, we can work out the number of people that use only the fitness suite or the swimming pool.

We know that 57 people use the fitness suite, but 36 of those are already counted in the intersection. So, 57-36=21 people use only the fitness suite.

The same goes for the swimming pool: 49-36=13 people use only the swimming pool.

So, we have:

  • 21 people using fitness suite only
  • 13 people using swimmng pool only
  • 36 people using both

This sums to 21+13+36=70 people. We deduce that 30 people don't use any of the features.

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3 years ago
Lin rode her bike 2 miles in 8 minutes. She rode at a constant speed. Complete the table to show the time it took her to travel
pantera1 [17]

Answer:

The answer is 56

Step-by-step explanation:

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2 years ago
Simplify -5 to the 2nd power, + 8 |-1| + (-3).
madreJ [45]

Answer:

-19

Step-by-step explanation:

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3 years ago
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Why shouldn't you use double negatives? It's a riddle for my Math Class
IRINA_888 [86]

A negative times a negative is a positive. I am not sure if that's the question, but hopefully that helps if it was.

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3 years ago
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