can someone please prove that the expression (x-y)+(y-z)+(z-x) is equivalent to 0

Answers

Answer 1

Answer:

see below

Step-by-step explanation:

[tex](x-y)+(y-z)+(z-x)\\\\=x-y+y-z+z-x\\\\=(x-x)+(-y+y)+(-z+z)\\\\=0+0+0\\\\=0[/tex]


Related Questions

PLEASE HELP, TIME SENSITIVE




A rectangular paperboard measuring 35in long and 26in wide has a semicircle cut out of it, as shown below.



Find the area of the paperboard that remains. Use the value 3.14 for π(pi), and do not round your answer. Be sure to include the correct unit in your answer

Answers

Answer:

644.67 in^2 remaining

Step-by-step explanation:

So first find the area of this rectangle

rectangle area formula= A=LW

35*26=910

Now we have to find the semi circle value

so we know the diameter is 26 becuase the 2 sides (26 in) are equal and if you fill in the circle the diameter is still 26

A circle formula is

A= π*radius^2

So to find radius divide the diameter by 2

26/2=13

now 13^2=169

Now 169 *3.14 since asked that pi is 3.14

169*3.14=530.66

But Thats the whole circle

The circle that seems to be cut off is half of the original Circle so we half the original circle

530.66/2=265.33

Now we subtract that from the original

910-265.33=644.67

So

644.67 In^2

Which of the expressions below has the value found farthest to the left on a
number line?

A. 7-10

B. -7 - 10

C. 10 - (-7)

D. 10 - 7

Answers

Answer:

-7 - 10

Step-by-step explanation:

The values found farthest to the left of a numbwr line are negative values, with positive values located to the right and 0 being the midpoint.

Thus positive values increase towards the right of the number line while negative values on the other hand reduces as we move farther to the left of the number line.

Hence , from the options given, - 7 - 10 gives a total of - 17 is the lowest negative value given in the option.

Which expression is equivalent to (4g3h2k4)3

Answers

Answer:

d) [tex]8g^{6}h^{4} k^{12} - (h^{25} k^{15} )[/tex]

      [tex]\frac{(4g^{3} h^{2}k^{4} )^{3} }{8g^{3}h^{2} } - (h^{5} k^{3} )^{5}[/tex]    [tex]= 8g^{6}h^{4} k^{12} - (h^{25} k^{15} )[/tex]

Step-by-step explanation:

Explanation

Given expression

           =     [tex]\frac{(4g^{3} h^{2}k^{4} )^{3} }{8g^{3}h^{2} } - (h^{5} k^{3} )^{5}[/tex]

By using

        (ab)ⁿ = aⁿbⁿ

         [tex]\frac{a^{m} }{a^{n} } = a^{m-n}[/tex]

   =     [tex]\frac{(4)^{3} g^{9} h^{6}k^{12} ) }{8g^{3}h^{2} } - (h^{5} k^{3} )^{5}[/tex]

After simplification , we get

  [tex]= 8g^{9}g^{-3} h^{6} h^{-2} k^{12} - (h^{5} k^{3} )^{5}[/tex]

 [tex]= 8g^{9-3}h^{6-2} k^{12} - (h^{5} k^{3} )^{5}[/tex]

[tex]= 8g^{6}h^{4} k^{12} - (h^{25} k^{15} )[/tex]

learning task 5. identify what is asked item below.
1.what number i am between 21 and 31 a multiple of 4 and 7​

Answers

The number 28 is your answer

Find cos θ for θ = 60°

Answers

Question

Find cos θ for θ = 60°

Math problem please help

Answers

Answer:

[tex]\displaystyle -2[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Average Rate of Change: [tex]\displaystyle \frac{f(b) - f(a)}{b - a}[/tex]

Step-by-step explanation:

Step 1: Define

a = 4

b = 8

f(4) = -1

f(8) = -9

Step 2: Find Average Rate

Substitute [ARC]:                    [tex]\displaystyle \frac{f(8) - f(4)}{8 - 4}[/tex]Substitute:                              [tex]\displaystyle \frac{-9 + 1}{8 - 4}[/tex][Frac] Add/Subtract:              [tex]\displaystyle \frac{-8}{4}[/tex][Frac] Divide:                         [tex]\displaystyle -2[/tex]

A ball is projected vertically upward from the surface of the earth with an initial speed of 49 meters per second. The ball reaches its maximum height in 5.0s. What is the vertical velocity of the ball when it strikes the ground

A. 0 m/s
B. -9.8m/s
C. 49m/s
D.-49m/s

Answers

I believe the answer is choice B

Which inequalaty Is shown in this grap

Answers

Answer:

C. y ≤ -2x - 2

Step-by-step explanation:

Lets analyze the graph:

1. It is decreasing function as line goes down as x-value increases. It means the slope is negative. We have two same negatives: -22. Line is solid, so the inequality sign is either ≤ or ≥3. Shaded region is 'under' the line, it means the sign is ≤

Based on above observations and the fact that all have same y-intercept of -2, we can say required inequality is:

y ≤ -2x - 2

Correct option is C

What is the slope of the line that passes through the points (-5,8) and (-11,8)?
Write your answer in simplest form.

Answers

Answer:

[tex]\displaystyle m=0[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Point (-5, 8)

Point (-11, 8)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [SF]:                    [tex]\displaystyle m=\frac{8-8}{-11+ 5}[/tex][Fraction] Subtract/Add:                     [tex]\displaystyle m=\frac{0}{-6}[/tex][Fraction] Divide/Simplify:                  [tex]\displaystyle m=0[/tex]

Ben deposited $650 from his pressure washing business into a savings account. The simple interest rate paid by the bank is 3.5%. If Ben makes no deposits or withdrawals, how much interest will he earn in 4 years?

Answers

Answer:

Simple interest of Ben :

[tex] \frac{\$650 \times 3.5\% \times 4years}{100} = \frac{9100}{100} = \$91 \\ [/tex]

Ben earn $91 in 4 years.

one number is three times of the other and their arithmetic mean is 10 find them​

Answers

Step-by-step explanation:

data

let the unknown numbers = x and y respectively

y is 3 × greater than x so, y = 3x

x+y/ 2 = 10

solution:

x + 3x= 10

4x=10

divide both sides by 4

x=4/10 or 2 1/2

Which is more, 5 meters or 4,996 millimeters?

Answers

Answer:

5 meters in milli is 5,000. 5,000 is more than 4996

Step-by-step explanation:

Answer:

5 meters

Step-by-step explanation:

one meter equals 1000 millimeters so obv 5 meters is bigger

answer questions 15 and 16.

Answers

Answer:

Step-by-step explanation:

:(

HELP ASAP PLS THANKS SO MUCH

Answers

Answer:

(-4,1)

Step-by-step explanation:

Multiply first equation by 2

4x+6y=-10

Then subtract with second equation you get:

y=1

So put the value in first equation you get :

2x+3=-5

x=-4

Find the least common multiple of: 6, 3, 2

Answers

least common multiple of 6,3,2 is 6.

- 6 is the smallest number that is divisible by all three.

Answer:

.5

Step-by-step explanation:

PLEASE ANSWER QUICK! WILL MARK BRAINLIEST!

Answers

Answer:

Step-by-step explanation:

AB=99

ABC=1391

BAC=992

ACB=3301

in 15 minutes, joey rides his bike 2 miles. what the ratio for the number of miles too minute

Answers

Answer:

15:2

Step-by-step explanation:

the ratio is 15:2
———————




2. Carlos and Seth are catching bugs. The picture shows the number of bugs that Carlos has and the number of bugs that Seth has.

Answers

where is the picture

As part of a survey of college students a researcher is interested is the variable, class standing. She records a '1' if the student is a freshman, a '2' if the students is a sophomore, a '3' if the student is a junior, and a '4' if the student is a senior. The variable, class standing is:________.
a. both categorical and quantitative
b. quantitative
c. categorical
d. none of the above

Answers

Answer:

c. categorical

Step-by-step explanation:

                     Categories of the record

      1                       2                  3               4

Freshman      Sophomore     Junior        Senior

This is simply a categorical arrangement of students in the college by the researcher who is interested in the variable, class standing. So option C is correct

Find the x - intercept and
y - intercept of the graph of the
equation 4x + 7y = 6

Answers

Step-by-step explanation:

Step-by-step explanation:

x- intercept is the x coordinate when y is 0

4x + 7(0) = 6

4x = 6

x = 1.5

(1.5, 0)

y- intercept is when x is 0

4(0) + 7y = 6

7y = 6

y = 6/7

( 0, 6/7)

I hope this helps!!!

HELLO!

~ ★ Let x be the number4x + 7 (0) = 6  4x = 6  x = 1.54 (0) + 7y = 6 7y = 6 y = 6/7

✩✩✩

उपलब्धियों

what is the equation of the line passing through the points 2/5 19/20 and 1/3 and 11/12 is a slope intercept form​

Answers

Answer:

y= (1/2)x+(3/4)

Step-by-step explanation:

3 points
6. Find out the missing
quantities in the
questions #2: In a
classroom the ratio of
girls to boys is 2:1. If there
are 24 girls, how many
boys are there? *
O A. 10 boys
O B. 11 boys
O C. 12 boys
OD. 13 boys

Answers

Answer:

12 boys

Step-by-step explanation:

2 : 1 = 24 : 12

PLZZZ HELP ME ITS DUE TODAY AT 11:59, HELPPPP
1: In one year, Jerry lost $1,620 in the stock market. What was the average change in his stocks each months.
2: Devon lost 3 pounds each month for 7 months. What was the net change in Devons weight after the 7 months.

3: In a game, your score starts at 0. You lose four points three times in a row. You then gain two points. What is your score after those four turns?

Answers

Answer:

1) . Divide that number by 12 months

1620/12 = 135

2) 3 x 7 = 21

21 pounds lost

3) 0 - 4 - 4 - 4 + 2 = -10 points

hope this helps :)

Step-by-step explanation:

Answer:

1. 135

2. 21

3.-10

Step-by-step explanation:

simplify 5a+3a ???????

Answers

Answer:

8a

Step-by-step explanation:

group all similar terms

3a + 5a = 8a

halloween hut ordered 80 boxes with 20 costumes in each box. they also ordered 12 boxes with 90 masks in each box. how many more costumes than masks did they order?

Answers

80x20=1600 costumes
12x90=1080 masks
1600-1080=520
they ordered 520 more costumes than masks. hope this helps!

True or False: The following table is proportional

Answers

Answer:

True

Step-by-Step

When the x was 2, the y was 11.

When the x was 4, the y was 19.

So for every two on the x side, the y side adds 8.

So yes, there's a pattern AKA, this a proportional table.

Hope this helped! :)

Find the unit rate.
180 miles in 3 hours

Answers

Answer:

60 miles per hour

Step-by-step explanation:

First, put the equation in a fraction.

You would put 180 up top because people always say miles per hour not the other way around.

You can see the dividing line as your "per" and your "hour" would be the bottom number.  

To find the unit rate, you will divide the numerator (180) and the denominator (3).  

Your final answer should be 60 miles per hour.

[tex]\frac{180}{3} = \frac{60}{1}= 60[/tex]

Thirty years ago Mike McNamara cycled 445.0km in 12 hours – a new British men’s record at that time. In the same time trial Beryl Burton (who died last year) completed 446.2km.

How much faster was Beryl Burton’s average speed than Mike McNamara’s (in metres per hour)?

Answers

Answer:

1000m/h

Step-by-step explanation:

You figure out both of the cyclists km/h times but converting their distance in the 12 hours into a rate

Mike McNamara:

[tex]\frac{445}{12}[/tex]

Beryl Burton:

[tex]\frac{446.2}{12}[/tex]

You then divide the denominator (12) by itself so that it becomes 1

Mike McNamara:

[tex]\frac{445}{12}[/tex] = [tex]\frac{445/12}{1}[/tex]

Beryl Burton:

[tex]\frac{446.2}{12}[/tex] = [tex]\frac{446.2/12}{1}[/tex]

You then divide the numerators by what you divided the denominator by (12) to get the km/h

Mike McNamara:

[tex]\frac{445}{12}[/tex] = 37.08km/h (rounded to two decimal places)

Beryl Burton:

[tex]\frac{446.2}{12}[/tex] = 37.18km/h (rounded to two decimal places)

You them have to convert km/h to m/h by multiplying the numerators (37.08 & 37.18) by 1000 to get the distance in metres

Mike McNamara:

37.08 x 1000

= 37080m

=37080m/h

Beryl Burton

31.18 x 1000

= 37180m

= 37080m/h

Therefore Beryl Burton's average speed was faster than Mike McNamara's by 1000m/h

Which measurements could NOT represent the side lengths of a right triangle?
O 8 cm, 15 cm, 17 cm
O 20 cm, 21 cm, 29 cm
O 36 cm, 77 cm, 85 cm
O 7 cm, 28 cm, 32 cm

Answers

Step-by-step explanation:

A. 8 cm, 15 cm, 17 cm => This is a right triangle.

B. 20 cm, 21 cm, 29 cm => This is a right triangle.

C. 36 cm, 77 cm, 85 cm => This is a right triangle.

D. 7 cm, 28 cm, 32 cm => This is not a right triangle.

3y−3x= 21 standard to slope intercept form

Answers

Answer:

y=x+7

Step-by-step explanation:

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