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kaheart [24]
2 years ago
10

If a rope that is 29.7 inches long is cut into equal pieces that are 2.25 inches long, how many pieces of rope can be created

Mathematics
2 answers:
Lady bird [3.3K]2 years ago
6 0
The answer is 13.2 all you have to do is divide
beks73 [17]2 years ago
5 0
29.7÷2.25=13.2

13 2.25 inch pieces
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Solve this quadratic equation by completing the square. x2 + 10x = 26
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                        x² + 10x = 26
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          x² + 5x + 5x + 25 = 51
x(x) + x(5) + 5(x) + 5(5) = 51
         x(x + 5) + 5(x + 5) = 51
                 (x + 5)(x + 5) = 51
                          (x + 5)² = 51
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                                 - 5      - 5
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5 0
3 years ago
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Suppose on a certain planet that a rare substance known as Raritanium can be found in some of the rocks. A raritanium-detector i
aleksandrvk [35]

Answer:

0.967 = 96.7% probability the rock sample actually contains raritanium

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

P(B|A) is the probability of event B happening, given that A happened.

P(A \cap B) is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Positive reading

Event B: Contains raritanium

Probability of a positive reading:

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0.5% of 100-13 = 87%(false positive, positive when there is no raritanium). So

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Positive when there is raritanium:

98% of 13%

P(A) = 0.98*0.13 = 0.1274

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P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.1274}{0.13175} = 0.967

0.967 = 96.7% probability the rock sample actually contains raritanium

7 0
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K:A
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Answer:

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Step-by-step explanation:

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