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vekshin1
3 years ago
6

Which of these are proposition ? What are the truth values of those that are propositions? a) Do you pas go b) What time is it ?

c) These are no black flies in Maine d)4+x= 5 e) The moon is made of green cheese
Mathematics
1 answer:
Licemer1 [7]3 years ago
8 0

Answer:

Part A

c) These are no black flies in Maine

d) 4 + x = 5

e) The Moon is made of green cheese

Part B

c) Likely false

d) True

e) False

Step-by-step explanation:

Part A

A proposition is a sentence that declares affirmation or denies a subject's predicate by the use of a Copula

Therefore, the statements are;

c) These are no black flies in Maine

Here the subject is Maine, the predicate is no black flies, and the copula is are

d) 4 + x = 5

Here the subject is '4 + x', the predicate, 5 and the Copula is '='

e) The Moon is made of green cheese

Here the subject is the Moon, the predicate is 'made of', and the copula is 'is'

Part B

The truth value of the statements are;

c) Likely false

d) True, 'x' is a variable

e) False

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iogann1982 [59]

Answer:

<em>95% of confidence intervals are</em>

<em>(31.5215 , 53.4785)</em>

Step-by-step explanation:

<u><em>Explanation</em></u>:-

Given sample size 'n' =24

Mean of the sample  x⁻ = 42.5

Standard deviation of the sample 'S' = 26

<em>95% of confidence intervals are determined by</em>

<em></em>(x^{-} - t_{0.05} \frac{S}{\sqrt{n} } , x^{-} + t_{0.05} \frac{S}{\sqrt{n} })<em></em>

<em>Degrees of freedom </em>

<em>                 ν =n-1 = 24-1 =23</em>

<em></em>t_{0.05} = 2.0686<em></em>

<em>95% of confidence intervals are</em>

<em></em>(42.5 - 2.0686 \frac{26}{\sqrt{24} } , 42.5+ 2.0686 \frac{26}{\sqrt{24} })<em></em>

<em>( 42.5 -10.9785 ,42.5 +10.9785)</em>

<em>(31.5215 , 53.4785)</em>

<em></em>

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3 years ago
Toru takes his dog to be groomed. The fee to groom the dog is $75 plus 7% tax. Is $80 enough to pay for the service? Explain.
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Xelga [282]

Answer:

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2. 2x - 12

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Step-by-step explanation:

For problems like this in the future, pay attention to the order of words, and how they go together! For example- "the difference of 23 and a number" means to subtract a number from 23, whereas "the difference of a number and 23" would mean to subtract 23 from the number. Words like "increase" and "sum" both mean addition; "product" and "times" both mean multiplication; "difference" and "less" mean subtraction. Just keep these in mind (and watch for context)!

I hope this helped! :)

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3 years ago
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\huge\colorbox{violet}{✏﹏ \: ᴀɴsᴡᴇʀ \: }

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