B is the midpoint of AC and E is the midpoint of BD. if A(-9,-4), C(-1, 6), and E(-4, -3) find coordinates of D

Answers

Answer 1

Answer: The coordinates of D are (-3, -7).

Step-by-step explanation:

First, we need to find the coordinates of B. In order to do that, take the average of the two points that make up the segment which are A and C.

Average of x's: -9 + -1 = -10/2 = -5

Average of y's: -4 + 6 = 2/2 = 1

Therefore, the coordinates of B are (-5, 1). Coordinates are always (x,y).

Now we can find D by noting that the E will be the average of B and D. So we can use the average equation to determine the value of D.

Average of the x's:

(B + D)/2 = E

(-5 + D)/2 = -4

-5 + D = -8

D = -3  

Average of the y's:

(B + D)/2 = E

(1 + D)/2 = -3

1 + D = -6

D = -7

The coordinates of D are (-3, -7).


Related Questions

3) A real estate agent sells a house for $1 500 000. The commission rate is 1.85% of the selling price. Calculate the commission. (A) $2 775 000 (B) $27 750 (C) $277 500 (D) $2 775​

Answers

Answer:

B 27,750

Step-by-step explanation:

1,500,000 × 1.85 /100

= 27,750

Can someone help me ASAP​

Answers

Answer:

8. thousands, 5,000

9. millions 6,000,000

Step-by-step explanation:

Answer:

8: thousands place, 5,000

9: millions place, 6 million

Step-by-step explanation:

Place value is quite confusing at first, but it gets to be much easier. Basically, every time you add a place on a number, you are increasing its place value! Lets use number 9 for example. The one in this number is in the ones place. You know this because it is the last digit. The 4, is the tens place, since it is directly to the left of the ones place. You are increasing the place value to the left. The order of place value is:

Ones

Tens

Hundreds

Thousands

Ten thousands

Hundred thousands

Millions

Ten Millions

Hundred Millions

Billions

and so on. I hope this was helpful!

What is the size of the matix resulting from [4 -1 0] x [2 1 0 -3 -7 2 1 -5 2]

Answers

Answer:

3396

Step-by-step explanation:

If x + 4:8 = 30:4 find the value of x

Answers

Answer:

x = 7

Step-by-step explanation:

[tex]x + 4 \div 8 = 30 \div 4[/tex]

[tex]x + 0.5 = 7.5[/tex]

[tex]x = 7.5 - 0.5[/tex]

[tex]x = 7[/tex]

Answer:

56

Step-by-step explanation:

x+4=30*2

x=60-4

x=56

Can anyone help me with this, please?

Answers

9514 1404 393

Answer:

  C.  3x∛(y²z)

Step-by-step explanation:

The relevant rules of exponents are ...

  [tex]\sqrt[n]{a^m} = a^\frac{m}{n}\\\\(a^b)^c=a^{bc}[/tex]

__

Your expression can be rewritten and simplified as follows.

  [tex]\displaystyle\sqrt[3]{27x^3y^2z}=(3^3x^3y^2z)^\frac{1}{3}=3xy^\frac{2}{3}z^\frac{1}{3}=3x(y^2z)^\frac{1}{3}=\boxed{3x\sqrt[3]{y^2z}}[/tex]

Which equation matches the line shown on the graph below?

Answers

ANSWER: A

count rise/run. the 0 goes 2 up and 3 over to the next point making that your slope
The equation that matches the line shown on the graph is a

I will give yall extra points please help

Answers

Answer:

-63

Step-by-step explanation:

Solve parenthisis first. Solve the exponent inside the parenthhisis. 4 to the 2nd power is 16. -25+16=-9. -9*7=-63

P

E

MD

AS

Answer:

Step-by-step explanation:

PEDMAS stands for

Parentheses (brackerts

Exponents (squared, squared roots, powers)

Divide and Multiply from left to right

Add and Subtract from left to right

This means in this case that we first look at everything inside the brackets and at the end multiply by 7. The inside of the brackets says -25 + 4². In PEDMAS, the E (exponent) comes before A (add), so we do 4² first and then we do the -25. This results in:

-25 + 4² =

-25 + 16 =

-9

So now we are left with (-9) x 7

This is just a multiplication which gives us -63.

I hope this helps!

cans someone please help me out? i will give brainliest

Answers

Answer:

okay

Step-by-step explanation:

sure how can I help?

Answer:

vectors are orthogonal

Step-by-step explanation:

If 2 vectors are orthogonal then their dot product = 0

uv

= (i - j ) • (i + j )

= (1 × 1 ) + (- 1 × 1 )

= 1 + (- 1)

= 1 - 1

= 0

Since dot product is zero then the vectors are orthogonal

Use the rule for order of operations to simplify the expression as much as possible 67−4(3⋅8−10)=

Answers

[tex]67-4\cdot(3\cdot8-10)=67-4\cdot(24-10)=\\\\=67-4\cdot14=67-56=\boxed{11}[/tex]

Can someone please help

Answers

Answer:

[tex]f(x) = 25 \times {1.25}^{x} [/tex]

Step-by-step explanation:

1.25 ^ -2 = 0.64 × 25 = 16

1.25 ^-3 =0.512 × 25 =12.8

Please help me it would be appreciated

Answers

Answer:

45+5b

Step-by-step explanation:

math

Please I need help! I will give brainliest to whoever answers also! Thank you!!

Answers

Answer:

No, If there equivalent they don't have to be equal. And if they are equal then don't have to be equivalent

Step-by-step explanation:

Hopes this helps.

Factor the GCF out of the following expression

Answers

Answer and Step-by-step explanation:

To find the GCF (Greatest Common Factor), you need to see what all of the numbers have in common.

By looking at the terms in the expression, we can see that all the numbers are divisible by 4, so lets factor that out.

[tex]4(23x^7y^5+24x^5y^4+11x^4y^5)[/tex]

We can also see that the terms have a [tex]x^4[/tex] and [tex]y^4[/tex] in common, so factors those out.

[tex]4x^4y^4(23x^3y+24x+11y)[/tex] <- This is the answer.

#teamtrees #PAW (Plant And Water)

I hope this helps!

0.21 es mayor o menor que 0.210

Answers

Nope it’s equal to! 0.21 = 0.210

Select all that show multiplication:
A 3/4
B (3)(4)
C 3x4
D 3*4
E 3(4)

Answers

B
C
D
E
They all show multiplication
B , C , D and E all show multiplication
A is division

What factors of -52 have the sum of -9

Answers

Answer:

Step-by-step explanation:

13 and 4 in some combination.

The larger number must be minus.

The answer is - 13 + 4 which leaves you with - 9

brainiest to whoever right

Answers

Answer:

Ray AE and Ray EC

Step-by-step explanation:

opposite rays are those that share the same midpoint but extend in opposite directions

One more to go with math homework. We need help I’m an old lady just helping my nephew

Answers

Answer: Vertical test shows that each input has exactly one output. Both functions displayed should be functions. (Use vertical line and make sure it only intersects at one place)

Need Help!!!!!!!!!!!!!! Find the perimeter of the shaded figure.

Answers

[tex]\text{Perimeter}=2\cdot2 \ \text{units}+2\cdot7 \ \text{units}+10 \ \text{units}+6 \ \text{units}=\\\\=4 \ \text{units}+14 \ \text{units}+16 \ \text{units}=\boxed{34 \ \text{units}}[/tex]

-31+(-42)=
38+(-43)=

Answers

Answer:

-31+(-42)= -31-42 = -73

38+(-43)= 38-43 = -5

(-) - (-) = +

(-)+(-) = +

(-)+(+) = -

a) Use the method of cylindrical shells to find the volume of the solid obtained by rotating the region bounded by the given curves about the x-axis.
xy = 2, x = 0, y = 2, y = 4
b) Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about the specified axis.
y = x3, y = 8, x = 0; about x = 9

Answers

(a) See the attached sketch. Each shell will have a radius y chosen from the interval [2, 4], a height of x = 2/y, and thickness ∆y. For infinitely many shells, we have ∆y converging to 0, and each super-thin shell contributes an infinitesimal volume of

2π (radius)² (height) = 4πy

Then the volume of the solid is obtained by integrating over [2, 4]:

[tex]\displaystyle 4\pi \int_2^4 y\,\mathrm dy = 2\pi y^2\bigg|_{y=2}^{y=4} = 2\pi (4^2-2^2) = \boxed{24\pi}[/tex]

(b) See the other attached sketch. (The text is a bit cluttered, but hopefully you'll understand what is drawn.) Each shell has a radius 9 - x (this is the distance between a given x value in the orange shaded region to the axis of revolution) and a height of 8 - x ³ (and this is the distance between the line y = 8 and the curve y = x ³). Then each shell has a volume of

2π (9 - x)² (8 - x ³) = 2π (648 - 144x + 8x ² - 81x ³ + 18x ⁴ - x ⁵)

so that the overall volume of the solid would be

[tex]\displaystyle 2\pi \int_0^2 (648-144x+8x^2-81x^3+18x^4-x^5)\,\mathrm dx = \boxed{\frac{24296\pi}{15}}[/tex]

I leave the details of integrating to you.

Find the slope and y-intercept of the following line.
- 10x - 8y = 8
Find the slope. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. The slope of the line is (Simplify your answer. Type an integer or a fraction)
O B. The slope of the line is undefined
(Answer quickly)

Answers

Answer:

Slope: - 5/4

y-intercept: - 1

Step-by-step explanation:

- 10x - 8y = 8

- 8y = 10x + 8

y = - 10x/8 -8/8

y = - 5/4x - 1

What is the solution of this system of linear equations?

Answers

Answer:

The solution would be located at the location where the 2 lines intersect:

(2, -5)

Step-by-step explanation:

If 3/4 of the library books are fiction and 5/7 are paperback what fraction of the books are fiction and paperback

Answers

Answer:

15/38

Step-by-step explanation:

assuming the fraction of paperback in the fiction category is also 5/7, the fraction of the books which are fiction and paperback would just be the 2 fractions multiplied together.

What is mean median mode range?

Answers

Answer:

Mean- the average of data, meaning you add up all the numbers, and then divide the sum of the numbers by how many numbers there are. For example:

2, 2, 3, 4, 6, 6, 9.

7 numbers total.

2 + 2 + 3 + 4 + 6 + 6 + 9 = 32

32 ÷ 7 = 4.57

The mean would be 4.57.

Median- the middle point of the numbers. You cross off each of the numbers until you have one last number standing. If you have an even number of numbers, you find the middle of the last two numbers you crossed off. For example:

2, 2, 3, 4, 6, 6, 9

2, 3, 4, 6, 6

3, 4, 6

4

4 would be the median.

Mode- the largest number on the data.

Range- subtract the mode (largest number) from the smallest number to get range. For example:

2, 2, 3, 4, 6, 6, 9

9 - 2 = 7

7 would be the range.

Step-by-step explanation:

Letecia had overdrawn on her checking account 3 days in a row after the balance reached $0. Each day she took $15 without realizing what had happened . Which of the following would appear on a bank statement representing the amount currently in her account she since spent more than she had?



A. -$12

B. -$45

C. -$5

D. -$18

Answers

Answer:

d

Step-by-step explanation:

Evaluate the expression when g=46 and h=4.
g-6h

Answers

Answer:

46-6(4)=46-24=22

Step-by-step explanation:

Mark brainliest and please rate 5 stars :)

If pencils cost $2.40 for twelve,
What is the unit price per pencil?

Answers

Hello :D

To do this we need to do:

$2.40/12 = $0.20

Answer = $0.20

Answer: 0.20

Step-by-step explanation:

Above is correct! and same question as you

What is 12 X 1 1/2? Can someone explain with step by step?

Answers

Answer:

6

Step-by-step explanation:

[tex]12 \times 1 \frac{1}{2} [/tex]

[tex]12 \times \frac{1}{2} [/tex]

[tex] = 6[/tex]

Need help please answer

Answers

Answer:

I hope this will help you :)

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