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2 years ago

Find midpoint of xy X(7,-5) and y (9,-1)

Mathematics

2 answers:

Jlenok [28]2 years ago

8 0

Answer:

(8,-3)

Step-by-step explanation:

(x1+x2/2), (y1+y2/2)

7+9/2=16/2=8 x=8

-5-1/2=-6/2=-3 y=-3

zubka84 [21]2 years ago

7 0

Answer:

Step-by-step explanation:

The formula of a midpoint of AB

$A(x_A,\ y_A),\ B(x_B,\ y_B)\\\\M_{AB}\left(\dfrac{x_A+x_B}{2};\ \dfrac{y_A+y_B}{2}\right)$

We have the points X(7, -5) and Y(9, -1).

Substitute:

$M_{XY}\left(\dfrac{7+9}{2};\ \dfrac{-5+(-1)}{2}\right)\\\\M_{XY}\left(\dfrac{16}{2};\ \dfrac{-6}{2}\right)\\\\M_{XY}(8,\ -3)$

You might be interested in

What is the area of a shape with points a 5 -8 b 11, -8 c 11,0 d 6,-3 e 4,-3

Dmitriy789 [7]

Answer:

Area of the given figure is 51.5 square units.

Step-by-step explanation:

Area of rectangle OCBH = Length × width

= 11 × 8

= 88 square units

Area of trapezoid OGEF = $\frac{1}{2}(b_1+b_2)\times h$

= $\frac{1}{2}(\text{GE+OF)}\times (\text{OG})$

= $\frac{1}{2}(3+6)\times 4$

= 18 units²

Area of trapezoid GCDE = $\frac{1}{2}(\text{GC+DE)}\times (\text{GE})$

= $\frac{1}{2}(7+2)\times 3$

= 13.5 units²

Area of triangle AFH = $\frac{1}{2}(\text{Base})\times (\text{Height})$

= $\frac{1}{2}(5)(2)$

= 5 units²

Area of polygon ABCDEF = Area of rectangle CBHO - (Area of trapezoid OGEF + Area of trapezoid GCDE + Area of triangle AFH)

= 88 - (18 + 13.5 + 5)

= 88 - 36.5

= 51.5 units²

Therefore, area of the given polygon is 51.5 units²

3 0

3 years ago

Help this is due tomorrow but she didn’t teach us how.

mario62 [17]

Answer:

see below for drawings and description

Step-by-step explanation:

For geometry problems involving translation, rotation, and reflection—transformations that change location, but not size ("rigid" transformations)—it might be helpful for you to trace the image onto tracing paper or clear plastic so that you can manipulate it in the desired way. Eventually, you'll be able to do this mentally, without the aid of a physical object to play with.

For the images attached here, I copied the triangle onto a piece of clear plastic so I could move it to the desired positions. The result was photographed for your pleasure.

a. Translation means the image is moved without changing its orientation or dimensions. You are asked to copy the triangle so that the upper left vertex is moved to what is now point E. See the first attachment.

b. Reflection means the points are copied to the same distance on the other side of the point or line of reflection. Just as an object held to a mirror has its reflection also at the mirror, any points on the line of reflection do not move. Reflection flips the image over. See the second attachment.

c. Rotation about point D means point D stays where it is. The angle of rotation is the same as the angle at D, so the line DE gets rotated until it aligns with the line DF. The rest of the triangle maintains its shape. See the third attachment.

8 0

3 years ago

John was swimming for hour anda half hours at a speed of 2 miles per hour.How far did he swim?

Marrrta [24]

Answer:

3 miles

Step-by-step explanation:

2+1=3 znnsndndnndjd

5 0

3 years ago

Read 2 more answers

Giúp mình với mình không biết làm

Vladimir [108]

Can you translate so I can help you out

4 0

2 years ago

Bruno uses a piece of wrapping paper with dimensions 1 and one-fourth feet by 3 feet to wrap a gift. What is the total area of t

8_murik_8 [283]

The area of the paper used to wrap the gift is 3 3/4 square feet

<h3>How to determine the total area?</h3>

The dimension is given as:

1 1/4 by 3

The area is the product of the dimensions.

So, we have

Area = 1 1/4 * 3

Express as an improper fraction

Area = 5/4 * 3

Evaluate

Area = 15/4

Rewrite as:

Area = 3 3/4

Hence, the area of the paper used to wrap the gift is 3 3/4 square feet