The midpoint of ab is m (-2,-1) if the coordinates of a are (-7,2) what are the coordinates of b

Answers

Answer 1

Answer:

The coordinates of b are: (x, y) = (3, -4)

Step-by-step explanation:

Given

Given that the midpoint of the ab is:

m(-2, -1)

The coordinates of a are:

(-7, 2)

To determine

The coordinates of b = ?

Let b (x, y) be the coordinates of b.

Given that the midpoint of the ab is m(-2, -1)

Thus,

(x - 7) / 2 = -2,      (y + 2) /2 = -1

now solving

(x - 7) / 2 = -2

(x - 7) = -2 × 2

x - 7 = -4

adding 7 in both sides

x  - 7 + 7 = -4 + 7

x = 3

and solving

(y + 2) /2 = -1

(y + 2) = -1 × 2

y + 2 = -2

subtracting 2 from both sides

y + 2 - 2 = -2 - 2

y = -4

Thus,

The coordinates of b are: (x, y) = (3, -4)


Related Questions

Which answer describes the type of sequence?


99, 33, 11, 113, ...



neither arithmetic nor geometric

arithmetic

geometric

Answers

Answer:

Geometric

Step-by-step explanation:

r=1/3

Congruen Figures lyures Which figure is congruent to the given figure? Will give brainliest ​

Answers

Answer: Its the rectangle thats going upwards not flat.

Step-by-step explanation:

Answer: The rectangle at the very top and the one at the bottom are congruent.

Step-by-step explanation: REMEMBER YALL: congruent means the same( in geometry)

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What’s the area ? Please help

Answers

Answer:40

Step-by-step explanation:

Answer:

the answer is 40 square units

Step-by-step explanation:

it basically gives you the answer and you just have to choose which one. with area it will always be square units (whatever the unit my be) or units^2

The admission fee to the Omnitheatre is $f. The admission fee to the Science Centre is $3 less. Jessica purchases 8 tickets to the Science Center. What is the admission fee to the Science Centre if she pays the cashier $122? *​

Answers

Answer:

98

Step-by-step explanation:

3 times 8=24

122-24=98

Describe the rule for the rotation.

How to answer:
____ degrees _________(clockwise or counterclockwise)

Answers

Answer:

Step-by-step explanation:

If you draw a line from the origin (0,0) to L ( the original point ) and a different line from the origin to the image L' you can see the angle of rotation as being

90 degrees and that the rotation is clockwise.  

the rule is (x, y) become ( y, -x)

what is the value of x for 3x+4y=16

Answers

Answer:

5.333

Step-by-step explanation:

a line is parallel to y= 4x-2 and intersects the point (5,-11). what is the equation of this parallel line?

y=4x + ?

Answers

The equation of line parallel to given line is: y=4x-31

Step-by-step explanation:

Given equation of line is:

The equation of line is in slope-intercept form so the co-efficient of x is the slope of the line.

Let m1 be the slope of the given line

then

m1 = 4

Let m2 be the line that is parallel to given line

As we know that the slopes of parallel lines is equal so

m1=m2 = 4

The slope-intercept form of equation of line is:

Putting the value of slope

to find the value of b, putting (5,-11) in the equation

Putting the value of b

Hence,

The equation of line parallel to given line is: y=4x-31

Keywords: Equation of line, slope

Answer:

z=−4x+y

Step-by-step explanation:

in place of the "?" i put a Z

y=4x+z

Let's solve for z.

y=4x+z

Step 1: Flip the equation.

4x+z=y

Step 2: Add -4x to both sides.

4x+z+−4x=y+−4x

z=−4x+y

Answer:

z=−4x+y

m Im not exactly sure if this is what your looking for and if it isn't, I'm sorry.

Nathaniel was given a large box of 24 chocolates for his birthday. If he
eats exactly 2 chocolates each day, how many chocolates would
Nathaniel have remaining 8 days after his birthday?

Answers

24 - (2 x 8)
24 - 16 = 8

What is the probability he will roll a 5?

Answers

Answer:

hurt himself if he is 5 pieces away from jail in monopoly and this is his 9th time

Step-by-step explanation:

A rabbit weighs 2.8 kg.
After being shot its weight
is increased by 1%.
How much does it
weigh now?

Answers

Answer:

The rabbit now weighs 2.828 kg.

Step-by-step explanation:

First we have to do 2.8 ÷ 100 to see how much 1% of the rabbit weighs.

2.8 ÷ 100 = 0.028 kg

1% of 2.8 is 0.028! Now we have to add 0.028 to 2.8 to get our answer!

2.8 + 0.028 = 2.828 kg

The rabbit now weighs 2.828 kg.

The answer to 11/12-7/9

Answers

Answer:

5/36

Step-by-step explanation:

angle A and angle B are supplementary angles. If m angle A = (2x + 26)° and m
angle B = (x + 25)°, then find the measure of angle B.


x=43

Answers

Answer:

m angle B = 68°

Step-by-step explanation:

Since they are supplementary, they add up to 180°

(2x+26) + (x+25) = 180

add like terms together

3x+26+25=180

simplify the left side

3x+51=180

subtract 51 from both sides

3x=129

divide both sides by 3

x=43

Then you plug in x into measure B

(43)+25

68

a) Garry's bank shows a balance of $50 and George's show's a balance of $42. Calculate
difference between the two bank accounts

Answers

Answer:

The difference is 8$

Step-by-step explanation:50-42

(-5,-3) (5,5)
slope
What is the slope ?

Answers

Answer:

The slope is 10/8

Step-by-step explanation:

You would rise 10 units and you would run 8 units.

Plz help if you could I would appreciate it :)

the highlighted ones only​

Answers

Step-by-step explanation:

this is the process to convert to the perfect square.

try to bring convert to (x-a)^2 or (X+a)^2

I've done 2 questions hope it gives u the basic idea .

18n=40
What is n? (please answer fast im doing mid terms and i have no clue what is happening)

Answers

Answer:

n = 40/18

simplify it to 20/9 or as a mixed number i would be 2 2/9

Step-by-step explanation:

Need to know now!
How do you solve “at this rate...”

Answers

Answer: you do the length times width

Step-by-step explanation:

Answer:

"At this rate" for me usually will be some sort of dividing

Plz help.
Will give brainliest answer.

Answers

Step-by-step explanation:

If cats are 10 and dogs are 4 means cats are 6 more than dogs means 4+6 = 10

so 5-6 = -1

32+6= 38

hope it's helpful ❤❤❤❤❤❤

THANK YOU.

#

The five Smith children run to the ice cream truck. In how many orders can they served one at the time? ​

Answers

There’s nothing we can use to solve this.

18-
3. Your family is planning to take the Amtrak train from Hartford to New York City for a day trip. As a result
of some research you learn that your friend Jackie took the train with a group of 3 adults and 5 children and
it cost them $269.50. A cousin also took the train to the city with a group of 2 adults and 3 children and it
cost them $171.50. Find the price of an adult's ticket and the price of a child's ticket.

Answers

Answer: 67.37 for adult 45.91 for child

Step-by-step explanation:

60% of 15 is what answer

Answers

The correct answer is 9. :)

Answer:9

Step-by-step explanation:

Think of it this way:

If 15=100%

then x= 60%

So what you do is you multply 60 times 15 and divide it by 100 to give you the answer of 9. To me this is the simplest way to do it, I believe it’s called butterfly multiplying. You cross multiply and then you divide.

What is 12% of 88? *

Answers

Answer:

12% of 88 is 10.56

Answer:

10.56

Step-by-step explanation:

The temperature on Saturday was 6 1/2°C. On Sunday, it became 3 3/4°C colder. What was the temperature on Sunday?

Answers

Answer:

2 3/4

Step-by-step explanation:

6 1/2 - 3 3/4 is the same as 6.5-3.75 = 2.75 or 2 3/4



What is the slope of the line that passes through the points (3,-5) and (1,-5)?
Write your answer in simplest form.

Answers

Answer:

The slope is 0.

I think that is how you put it in simplest form

Give the graphs of f(x) and g(x), what is f (f (2)) ?

Answers

Answer:

3

Step-by-step explanation:

Because on the graph when  x is 2 y is 3 ( look on the red line that's the f(x0 graph)

Some please help me, if you do i will make you brainliest :)

Answers

The y intercept is 2 which means the line crosses the y axis at 0,2 the Slope of the line is negative so it goes down from left to right. start at the Y intercept go up 1 and over 4. You are now at the point 4,3. The graph is b

Solve for x: 4x + 3 = -21

PLS CAN SOMEONE ANSWER THIS FAST‼️‼️

Answers

Answer:

x = -6

Step-by-step explanation:

subtract 3 from -21 which is -24

then divide -24 by 4

Answer:

Add 33 to both sides.

4x=1+3

4x=1+3

2 Simplify  1+31+3  to  44.

4x=4

4x=4

3 Divide both sides by 44.

x=1

x=1

Step-by-step explanation:

3. Use the equation to answer the following question. 3x2 + 7x - 20 = 0 What are the solutions of the equation?

A. X = 5 and x = 4 3
B. X = - 4 and x = 5 3 4
C. X = and x = -5 3 5
D. X = and x = -4 3 ​

Answers

Hmmm I got u I know somebody that can help you really good I have to get them right now I’m

Help me please answer both ...

Answers

I cant see any question on the attachment it is just a black screen

Given the similarities statement HIJ ~ WXY which angle corresponds with

Answers

Answer:

I

Step-by-step explanation:

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