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DochEvi [55]
1 year ago
8

Let p and q be the propositions "Swimming at the New Jersey shore is allowed" and "Sharks have been spotted near the shore," res

pectively. Express each of these compound propositions as an English sentence. a) ¬q b) p ∧ q c) ¬p ∨ q d) p → ¬q e) ¬q → p f) ¬p → ¬q g) p ↔ ¬q h) ¬p ∧ (p ∨ ¬q)
Mathematics
1 answer:
gregori [183]1 year ago
7 0
<h2>Answer with explanation:</h2>

Given propositions: p ="Swimming at the New Jersey shore is allowed"

q = "Sharks have been spotted near the shore"

We need to express each of these compound propositions as an English sentence.

a) ¬q : not q

Sentence: Sharks have not been spotted near the shore.

b) p ∧ q : p and q

Sentence: Swimming at the New Jersey shore is allowed and sharks have been spotted near the shore.

c) ¬p ∨ q  : not p or q.

Sentence: Swimming at the New Jersey shore is not allowed or sharks have been spotted near the shore.

d) p → ¬q  : If p then not q.

Sentence: If swimming at the New Jersey shore is allowed then sharks have not been spotted near the shore.

e) ¬q → p : If not q then p.

Sentence: If sharks have not been spotted near the shore then swimming at the New Jersey shore is allowed .

f) ¬p → ¬q : If not p then not q.

Sentence: If swimming at the New Jersey shore is not allowed then sharks have not been spotted near the shore.

g) p ↔ ¬q : p if and only if not q

Sentence: Swimming at the New Jersey shore is allowed if and only if sharks have not been spotted near the shore.

h) ¬p ∧ (p ∨ ¬q) : not p and, p or not q.

Sentence: Swimming at the New Jersey shore is not allowed and, swimming at the New Jersey shore is allowed or sharks have not been spotted near the shore.

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Which transformation maps hexagon 1 into 3?
umka2103 [35]
Let's look at the possibilities:

1. Reflection along the y-axis and rotation of 180 degrees by the origin 0. (Gives us 4 and then 2 in the end)

2. Reflection along the y-axis and reflection along the x-axis. (Gives us 4 and then 3 in the end)

3. Reflection along the x-axis and rotation 90 degrees by the origin 0. (Gives us 4 and then 1 in the end)

4. Rotation of 270 degrees by the origin 0. (Gives us 2 in the end)

Option 2 is the answer.

Best of luck!
5 0
2 years ago
Uma empresa transporta armários para escritórios para uma localidade distante 425km. Seu custo é de R$2,10 por km rodado. Quando
MariettaO [177]

Answer:

1.  <u>$14.88</u>

2.  <u>$12.40</u>

Step-by-step explanation:

An english translation:

<em>A company transports office cabinets to a location 425km away. Its cost is R $ 2.10 per km traveled. When the cabinets are assembled, the vehicle's capacity is 60 units. When they are disassembled the capacity increases 6 times. We ask: 1- What is the cost per assembled cabinet? 2- What is the savings per cabinet, when these are taken apart.</em>

<em />

<u>Solution:</u>

425 km with 2.10 per km means:

425 * 2.10 = $892.50 total cost

Now, when assembled, there goes 60 cabinets, so cost per assembled cabinet is:

<u>Cost per assembled cabinet = 892.5/60 = $14.875 = $14.88</u>

<u></u>

The capacity of 60 after disembling, it becomes:

60 * 6 = 360

So, cost per cabinet becomes:

892.5/360 = <u>$2.48</u>

The savings is how much you save up if they were assembled:

14.88 - 2.48 = <u>$12.40</u>

<u>Savings = $12.40</u>

8 0
2 years ago
The ratio of boys to girls in a certain classroom was 2 : 3. If boys represented five more than one third of the class, how many
Tju [1.3M]
Let the no. Of boys=x and that of girls=y.
The total no. Of students = x+y .
As given by statement the no. Of boys=x={(x+y)/3} + 5
This implies that
X=(x+y+15)/3
Also we know that x/y = 2/3 therefore
From this equation we get x=2y/3 and y=3x/2
By method of substitution we get
X=(x+3x/2+15)/3
•x=(15x+90)/2
•2x=15x+90
•-13x=90
X= -90/13
Now. Y= 3x/2=-270/26
Therefore total
no. Of students= -270/26+(-90/13)
•no. Of students= -450/26
According to me this is an imaginary question i mean how can their be a negative person
6 0
2 years ago
RS=2x-8, ST= 11, RT= x+10
swat32

Answer:

X=7 ST=11 RT=17

Step-by-step explanation:

RT=RS+ST. RS= 2(7)-8. ST=11

X+10=2x-8+11. =14-8=6. RT= x+10

X+10=2x+3. RS=6. 7+10=17

10=x+3. RT=17

X=7

4 0
2 years ago
A function f(x) has x intercepts of -3 and -5. What is the constant term in the function?
Anon25 [30]

Answer:

The constant term in the function is 5

Step-by-step explanation:

we have

f(x)=x^{2}+8x+b

where

b is the y-intercept or the constant term of the function

Remember that

The x-intercept is the value of x when the value of the function is equal to zero

so

For x=-3 ----> f(x)=0

For x=-5 ----> f(x)=0

substitute any of the intercepts in the function

For x=-3

0=(-3)^{2}+8(-3)+b

0=9-24+b

0=-15+b

b=15

f(x)=x^{2}+8x+15

Verify with the other intercept

For x=-5

0=(-5)^{2}+8(-5)+15

0=25-40+15

0=0 ---> is true

therefore

The constant term in the function is 5

3 0
2 years ago
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