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3 years ago

Which expression is equal to -0.4(3/2-1/4)?

Mathematics

2 answers:

Lesechka [4]3 years ago

6 0

I believe it’s c but I could be wrong

mezya [45]3 years ago

3 0

Answer:

The answer is D.

Step-by-step explanation:

The answer is D because the result of the -0.4(3/2-1/4) is -1/2 or -0.5. I checked the answers for everyone, they didn't match except for D, which result also ended in -0.5. You could also open parenthesis and solve like that but I like to compare and double check with the results.

Hope this helped!!

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An employee suspected of having used an illegal drug is given two tests that operate independently of each other. Test A has pro

puteri [66]

Answer:

0.02 or 2%

Step-by-step explanation:

The probability that test A is negative if the illegal drug has been used (P(A|N)) is 0.1 while the probability that test B is negative if the illegal drug has been used (P(B|N)) is 0.2.

Therefore, the probability that neither test is positive if the illegal drug has been used is:

$P(A \cap B|N) = P(A|N)* P(B|N) = 0.1 *0.2\\P(A \cap B|N) = 0.02$

There is a 0.02 or 2% probability that neither test is positive if the illegal drug has been used.

7 0

4 years ago

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Can you solve this exercise? please solve so I understand

Elanso [62]

$= 4 - 4 \: log_{5}(10) - 4 log_{2}(10) + 4 log_{2}(10) log_{5}(10) \\ \\ or \: \\ \\ = 4$

the answer is 2

<h2>hope it helps</h2>

see the attachment for explanation

5 0

3 years ago

Read 2 more answers

Can someone help me please

sveta [45]

Answer:

Step-by b

bbbbbbbb

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6 0

3 years ago

Barbie has a favorite number. The

Ivenika [448]

Answer:

Is -4444444444

Step-by-step explanation:

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3 years ago

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According to the chart, one milliliter of water would have a density of _____.

Leona [35]

The density of water is : 1 kg / lit
1 lit = 1 dm³
1 ml = 1 l / 1000
1 l = 1000 ml
1 kg = 1000 g
1 kg / l = 1000 g / 1000 ml = 1 g/ ml = 1 g / cm³
Answer: C ) 1 g / cm³

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4 years ago