Với n là số tự nhiêm, xét đinh lí " nếu n là số tự nhiên lẻ, thì n^2-1 chia hết cho 8". Định lí trên được viết dưới dạng P->Q
a. hãy xác định mệnh đề P và Q
b. Phát biểu định lý trên bằng cách sử dụng điều kiện cần

Answer:

71/1000

Step-by-step explanation:

cause ik math and I really not smart at the.same time

0.071 as a fraction in the lowest term is [tex]\frac{71}{1000}[/tex]

0.071 in fraction is [tex]\frac{71}{1000}[/tex]

because 71 and 1000 don't have greatest common factor so the lowest term is also the same.

Therefore, 0.071 as a fraction in the lowest term is

To learn more about the lowest term, refer to

https://brainly.com/question/17220365

#SPJ2

Hello!

Answer:

-11

Hope this helps!

Answer:

The area of the countertops surface is 27 square feet. The perimeter of the countertop is 24 feet.

Step-by-step explanation:

COMPUTATION:

Area:

width = 3 feet

length = width x 3 = 9 feet

wl = 27 square feet

Perimeter:

width = 3 feet

length = 9 feet

w + l + w + l = 24 feet

Hope this helps!

Answer:

1: double a number

3: the product of 18 and a number subtracted from the square of another number

4: x+14

6: 7+11x

9: n raised to the power of three + 5

Answer:

Subtract 15 from both sides

Step-by-step explanation:

Answer:

26.66666666666667

Step-by-step explanation:

1200/45=

Answer:

250 Hamburgers

Step-by-step explanation:

575 is total

Hamburger is x

Cheesburgers is (x-75) as it is 75 less than the number of hamburgers

x + (x-75) = 575

2x -75 = 575

2x = 500

x = 250

Feel free to mark this as brainliest! :D

Answer:

40 40 40 is 120

38 40 42 is 120

Step-by-step explanation:

Answer:

the social desirability effect

Step-by-step explanation:

Social-desirability biases is the sort of response bias that is the tendency of the survey respondent to answer the question in a manner that is favorable to others.

Hence the social desirability bias is the main culprit for such a response.

Learn more about the Maria conducted an in-person pre-election survey about voter preferences.

brainly.com/question/16593814.

Answer:

D

Step-by-step explanation:

1+3=4

1 out of 4 =1/4

remember x is bigger than y

Hello loll6591!

[tex] \huge \boxed{\mathbb{QUESTION} \downarrow}[/tex]

Perform the indicated operation and simplify the result. x/5+x/6

[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]

[tex] \frac{x}{5} + \frac{x}{6} \\ [/tex]

First, find the LCM of 5 & 6, which is 30.

[tex] \rightarrow \frac{x}{5} \times \frac{6}{6} = \frac{6x}{30} \\ \\ \rightarrow\frac{x}{6} \times \frac{5}{5} = \frac{5x}{30} [/tex]

Now add 6x/30 with 5x/30.

[tex] \frac{6x}{30} + \frac{5x}{30} \\ = \frac{6x + 5x}{30} \\ = \large \boxed{\boxed{\frac{11x}{30} }}[/tex]

__________________

Hope it'll help you!

ℓucαzz ッ

Answer:

77 degrees

Step-by-step explanation:

<P + <O = 38 + 39 = 77 degrees

180 - 77 = <N = 103 degrees

180 - 103 = 77 degrees (<PNM)

The scientific notation is 3.7 × 10^-8

:)

Hello!

Answer:

x=0

Step-by-step explanation:

Hope this helps!

Answer:  The correct answer is:  " x = 0 " .

________

Step-by-step explanation:

Given:  " 8 + 8x = 8 " ;  Solve for "x" ;

________

Method 1)

________

Subtract "8" from each side of the equation:

________

  → " 8 + 8x − 8 = 8 − 8 " ;

  → On the "left-hand side" of the equation:

          Note the following "like terms" :

            " +8 − 8 = 0 " ;

  →  and we are left with "8x" on the "left-hand side" of the equation.

  → On the "right hand side" of the equation:

         The "(8 − 8)" = 0 ;

________

And we are left with:

  →  " 8x = 0 " ;

________

Now, divide each side of the equation by "8" ;

   to isolate "x" on one side of the equation;

   & to solve for "x" :

________

  →  8x / 8 =  0/8 ;

to get:

  →  " x = 0 " ;

  →  which is the correct answer.

________

Method 2)

________

Given:  " 8 + 8x = 8 " ;  Solve for "x" ;

________

Subtract "8" from each side of the equation; in the following manner:

________

   8  +  8x    =    8 ;

 - 8             =   - 8 ;

_____________

   0  +  8x    =    0 ;

→ We have:  " 0 + 8x = 0 " ;

→ Note: On the "left-hand side" ; we have:

                 " 0 + 8x " ;

  We can simplify this to "8x" ; since the "addition property of zero" states that when "0" is added to any value; the resulting value does not change.

Now, we can bring down the "0" from the "right-hand side" of the equation;

And we can rewrite our equation as:

________

   → " 8x = 0 " ;

Now, divide each side of the equation by "8" ;

   to isolate "x" on one side of the equation;

   & to solve for "x" :

________

  →  8x / 8 =  0/8 ;

to get:

  →  " x = 0 " ;

  →  which is the correct answer.

________

Method 3)

________

Given:  " 8 + 8x = 8 " ;  Solve for "x" ;

________

Divide each side of the equation by "8" ;

________

  → " [tex]\frac{(8 + 8x)}{8} =\frac{8}{8}[/tex] " ;

________

To solve:

________

Note: On the "right-hand side" of the equation:

________

Take note that: " [tex]\frac{8}{8} =[/tex] (8 ÷ 8) = 1 " ;

________

Rewrite the equation as:

________

 →  " [tex]\frac{(8 + 8x)}{8} =1[/tex]  "  ;

________

To solve:

________

Note:  " [tex]\frac{x}{y} = z[/tex] " ;  ↔ [tex]x = z*y[/tex] ; [tex](y\neq 0)[/tex] ;

________

 →  " [tex]\frac{(8 + 8x)}{8} =1[/tex]  "  ;  

 →  From the "left-hand side" of the equation;

      Let us simplify:

________

 →  " [tex]\frac{(8 + 8x)}{8} = \frac{8}{8} + \frac{8x}{8} = 1 + x[/tex] " ;  

Now, bring down the "1" from the "right-hand side" of the equation;

and rewrite the equation:

________

 →  " 1 + x = 1 " ;

Now, subtract "1" from each side of the equation;

   to isolate "x" on one side of the equation;

   & to solve for "x" :

________

     " 1 + x − 1 = 1 − 1 " ;

  → On the "left-hand side" of the equation:

          Note the following "like terms" :

            +1 − 1 = 0 " ;

  →  and we are left with "x" on the "left-hand side" of the equation.

  → On the "right hand side" of the equation:

         The "(1 − 1)" = 0 ;

  → And we are left with:

      →  " x = 0 " ;

      → which is the correct answer!

________

The correct answer is:  " x = 0 " .

________

Hope that this answer—and the corresponding explanations—

are helpful !

  WIshing you the best!

________

Hello!

Answer:

The answer is C

Step-by-step explanation:

I wrote it in to my graphing calculator

Hope this helps!

Answer:

7

Step-by-step explanation:

3/7, 3/5, 3/4

if you draw out a illustration representing each fraction, you would find the answer.

hope this helped.

#a

Refer to attachment 1

#b

Refer to attachment 2

Answer:

6

Step-by-step explanation:

[tex]\frac{-5}{k} + 1\\\frac{-5}{-1} + 1\\5+1 = 6[/tex]

Answer:

if you tell me what it means I can help you

Answer:

Step-by-step explanation:

B

Answer:

0.5

Step-by-step explanation:

convert 2.4% to .024 just by moving it two spaces to the left!

(.024)(20) = .48

because your teacher may want it rounded to the nearest tenth, just round one up!

.48 ------> 0.5

comment or message me if you have questions :)

Answer:

0.5

Step-by-step explanation:

Answer:

3CuCl2 + 2Ni → 3Cu + 2NiCl3

Answer:

it should be A. 11

Step-by-step explanation:

2(6+1)-3

12+2=14

14-3= 11

Answer:

24

Step-by-step explanation:

Since the lines L and M are parallel:

Angle 1 and and 2 are alternate and their measurement is equal.

3x + 6 = 6x - 12 (we multiplied 6 with inside the parenthesis)

6 + 12 = 6x - 3x

18 = 3x divide both sides by 3

6 = x to find the angle measure replace x with 6

3x + 6 is 3*6 +  6 = 24

The equation of the line through the point (-4, 7) and with a slope of -5/2 is y = -5/2x - 3

The equation of a line in slope intercept form is expressed as:

[tex]y-y_0 = m(x-x_0)[/tex]

m is the slope

(x0, y0) is the point on the line.

Given the following parameters:

m = -5/2 and (x0, y0) =(-4, 7)

Substitute the given coordinates into the formula above;

y  - 7 = -5/2(x + 4)

2(y-7) = -5(x+4)

2y-14 = -5x - 20

2y = -5x - 20  + 14

2y = -5x - 6

y = -5/2x - 3

Hence the equation of the line through the point (-4, 7) and with a slope of -5/2 is y = -5/2x - 3

Learn more here: https://brainly.com/question/17003809

Answer:

$39.2 per pound

Step-by-step explanation:

First off, you know that there are 14 ounces of tomato.

Then you know that each can cost $2.80

After that, you have to multiply 14*2.80 to get $39.2

So the answer is $39.2

Hope this help you :)

Answer:

Question 1 : B) (8 x 20) - (8 x 1)

Question 2 :  D) (2 x 9) + (2 x 3)

Step-by-step explanation:

Distributive Property is used in algebraic expressions, to divide the equation, to make it easier to solve. For question 1,  since it was 20, you must subtract 8 from that answer, because 20 is 1 more than 19. For question 2, (2 x 9) + (2 x 3) would be the same thing as 2(9+3).

-kiniwih426

Answer:

B) (8 x 20) - (8 x 1)

D) (2 x 9) + (2 x 3)

Step-by-step explanation:

Distributive Property: "The distributive property tells us how to solve expressions in the form of a(b + c)."

___________________

Step 1: 8 x 19 = 152

Using PEMDAS, you can see which order to solve the equations in.

PEMDAS tells us to solve whatever is within the parenthesis first but there are 2 parenthesis and both have multiplication so just solve the first parenthesis first;

8 x 20 = 160

Step 2: We now have to solve the second parenthesis;

8 x 1 = 8

Step 3: Using PEMDAS, we see that after we solve the parenthesis, we do subtraction. So subtract 8 from 160.

160 - 8 = 152

So your answer is B) (8 x 20) - (8 x 1).

___________________

Step 1: 2(9 + 3)

Using the Distributive property, we multiply 2 by 9 and 3;

2 x 9 = 18

2 x 3 = 6

Now you are left with 18 + 6.

18 + 6 = 24

So your answer is D) (2 x 9) + (2 x 3).

___________________

Hope this Helps! :)

Answer:

But what do we have to do ? like add subtract or multiply?  i dont know

Step-by-step explanation: