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liubo4ka [24]
3 years ago
10

QUESTION 3

Mathematics
2 answers:
ira [324]3 years ago
7 0

Answer:

1. -> C

2. -> D

3. -> A

4. -> B

Step-by-step explanation:

Sergio039 [100]3 years ago
4 0

Answer:

Your answer is in of the following questions below in step by step explanation.

Step-by-step explanation:

I.   Logic

Are there "rules" or "laws" that govern proper reasoning?  Can we prove, mathematically, that a particular argument is valid?  To what extent can reasoning be automated?

1.   Statement (proposition):  a sentence that is either true or false, but not both.

Example.  Determine if each of the following sentences is a statement.

a.   5 + 3 = 7    

 

21 / 7 = 3    

 

c.   MIDN Miller is President of the United States    

 

d.  Ah,…the joy of SM242!    

 

e.  He is a midshipman  

 

MIDN Avworo has written C++ programs.    

 

Baltimore is the capital of Maryland.    

 

h.  3 * z < 9  

 

i.   Every even integer greater than 2 is the sum of two primes  

 

j.  This sentence is false.  

 

2.  Compound Statements:  a more complex statement composed of simpler statements.  The truth-value of a compound statement depends on the truth values of the simpler component statements.  The component statements in a compound statement are often referred to as statement variables.

 A compound statement usually consists of statement variables joined by logical connectives.

3.   Logical Connectives:  

Not (negation)  

Mathematical symbol:  ~

~p means "it is not the case that p"  where p is some statement.

Other notations: EMBED Equation.DSMT4  , EMBED Equation.DSMT4  

C++ notation:  

The negation of a statement has the opposite truth-value from the statement.  If p is true, ~p  is false.

The definition of negation is displayed in a truth table

p       ~p

F         T

T         F

And (conjunction)

Mathematical symbol:   EMBED Equation.DSMT4  

EMBED Equation.DSMT4    means “it is the case that p and q are true.”

C++ notation:  

The conjunction of two statements p and q is true when and only when both p and q are both true.

The definition of conjunction is displayed in a truth table

p    q       EMBED Equation.DSMT4  

F    F        

F    T        

T    F        

T    T        

Example

p:    MIDN Berrios is an officer

q:    MIDN

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Which property is shown by the equation 3(x + 6) = 3x + 18?
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Answer:

Step-by-step explanation:

I think it’s distributive property

4 0
3 years ago
Evaluate the expression. 42 + 5 • 32 – 42 ÷ 23
Leto [7]
42 + 5 * 32 - 42 ÷ 23

I am going to use the PEMDAS order. Parenthesis, Exponents, Multiply, Divide, Add, Subtract

Multiply ⇒ 5 * 32 = 160
42 + 160 - 42 ÷ 23

Divide ⇒ - 42 / 23 = -1.83
42 + 160 - 1.83

Add ⇒ 42 + 160 = 202
202 - 1.83

Subtract ⇒ 202 - 1.83 = 200.17

42 + 5 * 32 - 42 ÷ 23 = 200.17
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2 years ago
Please help ASAP, dhdbhehd
Fynjy0 [20]

Answer:

42°

Step-by-step explanation:

all triangles have 180 degrees, you are given 48. the symbol above 48 tells you it is 90 degrees. ther fore you can use 180- 90 - 48= 42

6 0
3 years ago
Write an expression to model the perimeter of the rectangle. Length is x-9 and width is 3x-4. Part b The perimeter of the rectan
koban [17]

Step-by-step explanation:

To find the perimeter of something, we add all of the measurements of the sides together.

A rectangle has 4 sides, this means we must double the algebraic hints given to us.

If we add them all up together it will look like this:

x-9+x-9+3x-4+3x-4=138

If we simplify it by collecting the like terms:

8x-26=138

We add 26 onto 138

8x=164

To find out what x equals, we divide by 8:

164÷8= 20.5

Answer:

x=20.5cm

x-9 is 11.5

3x-4 is 57.5

I know that you will not give 100 points but just wanted to help.

5 0
3 years ago
Read 2 more answers
The graph of y = x^2 -3 is translated in 4 units to the left of the graph to give the graph A
Vedmedyk [2.9K]

Answer:

a) b = 8, c = 13

b) The equation of graph B is y = -x² + 3

Step-by-step explanation:

* Let us talk about the transformation

  • If the function f(x) reflected across the x-axis, then the new  function g(x) = - f(x)
  • If the function f(x) reflected across the y-axis, then the new  function g(x) = f(-x)
  • If the function f(x) translated horizontally to the right  by h units, then the new function g(x) = f(x - h)
  • If the function f(x) translated horizontally to the left  by h units, then the new function g(x) = f(x + h)

In the given question

∵ y = x² - 3

∵ The graph is translated 4 units to the left

→ That means substitute x by x + 4 as 4th rule above

∴ y = (x + 4)² - 3

→ Solve the bracket to put it in the form of y = ax² + bx + c

∵ (x + 4)² = (x + 4)(x + 4) = (x)(x) + (x)(4) + (4)(x) + (4)(4)

∴ (x + 4)² = x² + 4x + 4x + 16

→ Add the like terms

∴ (x + 4)² = x² + 8x + 16

→ Substitute it in the y above

∴ y = x² + 8x + 16 - 3

→ Add the like terms

∴ y = x² + 8x + 13

∴ b = 8 and c = 13

a) b = 8, c = 13

∵ The graph A is reflected in the x-axis

→ That means y will change to -y as 1st rule above

∴ -y = (x² - 3)

→ Multiply both sides by -1 to make y positive

∴ y = -(x² - 3)

→ Multiply the bracket by the negative sign

∴ y = -x² + 3

b) The equation of graph B is y = -x² + 3

4 0
3 years ago
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