Answer:
See below
Step-by-step explanation:
Remember, we have two quantifiers, the existential quantifier ∃, and the universal quantifier ∀. The existential ∃ translates to English as "for some" or "there exists", whereas ∀ means "for all" or "every". We will also use the negation operator ¬.
First, let's write the proposition using quantifiers. "There is someone in this class who does not have a good attitude" translates to "(∃x)(¬S(x))". ∃x means that there exists a person in this class x. ¬S(x) means that x, the person that exists because of the quantifier, does not have a good attitude.
The negation is "¬(∃x)(¬S(x))" or equivalently "(∀x)(S(x))". To negate a proposition using quantifiers, change the quantifier (existential to universal and viceversa) and negate the predicate (in this case we negated ¬S(x)).
In English, "(∀x)(S(x))" means "Every person in this class has a good attitude".
1. The algebraic property of equality that is
represented is the multiplication property. The answer is letter P.
2. The algebraic property of equality that is represented is the subtraction
property. The answer is letter E.
3. The algebraic property of equality that is represented is the substitution
property. The answer is letter M.
4. The algebraic property of equality that is represented is the division
property. The answer is letter A.
5. The algebraic property of equality that is represented is the addition
property. The answer is letter A.
6. The algebraic property of equality that is represented is the distributive
property. The answer is Letter E.
7. The algebraic property of equality that are represented is the transitive
property. The answer is letter is E.
8. The algebraic property of equality that are represented is the symmetric
property. The answer is Letter A.
9. The algebraic property of equality that are represented is the reflexive
property. The answer is letter C.
10. The algebraic property of equality that are represented by is the multiplication property.
The answer is letter P.
11. The algebraic property of equality that are represented is the subtraction property.
The answer is letter L.
12. The algebraic property of equality that are represented is the reflexive property.
The answer is letter S.
13. The algebraic property of equality that are represented is the transitive property.
The answer is letter U.
14. The algebraic property of equality that are represented is the symmetric property.
The answer is letter K.
The given is 3 5 14 2
4 1 10 11 6 12 8 13 9 7
Plugging in the letters we got for each number, gives us MAKE
APPLESAUCE.
Okay. So, to find the percent change, we have to do change/original. In this case, it would be 12/15, because 15 and 27 are apart by 12. 12/15 is 0.8. Multiply that by 100 and you get 80. There was an 80% markup of the chair sold to the antique dealer.
We solve this problem by using the decibels formula which is expressed as:
dB = 10 x log (Isig/Iref)
where dB is decibels, Isig is the intensity of the signal and Iref is the intentsity of the softest sound the human ear can hear which has a value of 10^-12.
We solve as follows:
dB = 10 x log (<span>1.25 x 10–4 </span>/ 10^-12 ) = 80.97 decibels
Therefore, the correct answer is option A, 81 decibels.
Answer:
See explanation
Step-by-step explanation:
Ana started the work nicely by multiplying out factors to get:\
She multiplied 
correctly using difference of two squares to get: 
Unfortunately: She made a mistake in multiplying 
she mistakenly got 
instead of 
. <em>She left out the coefficient of 2.</em>
Therefore the second step should have been:
The next step will now be:
This simplifies to
