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2 years ago

The dolphin dives 20 feet below the surface of the ocean. What is the dolphins elevation in feet?

Mathematics

1 answer:

bearhunter [10]2 years ago

6 0

Answer:

-20 Feet.

The dolphin went below its initial starting point, Zero

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What is the value of x in the triangle?

Ksivusya [100]

Answer:

X = 102

Step-by-step explanation:

41 + 37 + x = 180

78 + x = 180

X = 180 - 78 = 102

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2 years ago

A research study shows that the yearly cost of dental claims for virginia state employees with dental care as a part of their he

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The right answer is 50% .

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3 years ago

Which number should.be added to the data so that the range of the data is 31? 54,72,64,57

Sergio039 [100]

Answer: 41 or 85

<u>Step-by-step explanation:</u>

Range is the difference between the largest number and the smallest number.

The largest number is 72. 72 - 31 = 41

The smallest number is 54. 54 + 31 = 85

Adding either ONE of those numbers will result in a range of 31.

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3 years ago

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castortr0y [4]

The answer is 12 because I just did the math

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3 years ago

The security system in a house has two units that set off an alarm when motion is detected. Neither one is entirely reliable, bu

Mariulka [41]

Answer:

Probability that detector B goes off is '0.615'

Step-by-step explanation:

Given that:

1) Probability that detector A goes off and detector B does not go off is 0.25.

2)Probability that detector A does not go off is 0.35.

3)Probability that detector A goes off is (1-0.35)=0.65

Assuming that

Probability that detector B goes off is 'p' Hence the probability that detector B does not goes off is (1-p)

Thus the probability that detector A goes off and detector B does not go off is product of the individual probabilities

$P(E)=0.65\times (1-p)\\\\0.65\times (1-p)=0.25\\\\0.65-0.65p=0.25\\\\0.65-0.25=0.65p\\\\\therefore p=\frac{0.40}{0.65}=0.615$

Probability that detector B goes off is '0.615'

5 0

3 years ago