An octagon has a perimeter of 28 units. What is the perimeter of the image of the octagon after the translation (x,y) → (x-7,y+ 6), a rotation 90 degrees clockwise, and a reflection across the y-axis?
A. 21 units
B. 34 units
C. 28 units
D. 196 units

Answer:

i believe it is 231 yd squared

Step-by-step explanation:

Answer:

1. 231 yd²

2. 78 ft²

3. 28 inches

4. 57.5 centimeters

5. 258 cm²

Step-by-step explanation:

That is not geometry, but here are your answers.

A = bh

A = 13.2 × 17.5

A = 231 yd²

[tex]A=\frac{bh}{2}[/tex]

[tex]A=\frac{(13)(12)}{2}[/tex]

[tex]A=\frac{156}{2}[/tex]

A = 78

[tex]b=2\frac{A}{h}[/tex]

[tex]b=2\frac{364}{28}[/tex]

b = 28

[tex]h=2\frac{A}{a+b}[/tex]

[tex]h=2\frac{5405}{65+123}[/tex]

[tex]h=2\frac{5405}{188}[/tex]

[tex]h=2(28.75)[/tex]

h = 57.5

A = a²

A = 12²

A = 144 cm²

12 ÷ 2 = 6

[tex]A=\frac{(h)(b)}{2}[/tex]

[tex]A=\frac{114}{2}[/tex]

A = 57

57 cm² + 57 cm² = 114 cm²

114 cm² + 144 cm² = 258 cm²

Answer:

(2,0), (6,0)

Step-by-step explanation:

X-intercepts are just points that are on the x-line. The two points that are on the x-line is (2,0) and (6,0). Therefore, those are the x-intercepts.

If this helps please mark as brainliest

Answer:

(2,0)

(6,0)

Step-by-step explanation:

The X intercept is any point that touches the X-axis on the graph (The X-axis the line that goes from left to right).

From looking at this parabola, we can see that it touches the x-axis twice, at the points (2,0) and (6,0).

Please give me brainliest if I helped!

Answer:

The box which weights a ton.

Step-by-step explanation:

Ounces are smaller than pounds, and pounds are smaller than a ton.

Answer:

The third box weighed the most.

Step-by-step explanation:

Tons weigh a lot more than pounds and ounces.

Answer:

It’s a

Step-by-step explanation:

Because it rotates in a 90 degree angle

Answer:

A or the 1st one

Step-by-step explanation:

Answers:

If an angle is labeled with a single letter, that letter represents the  vertex   of the angle.

If more than one angle has the same vertex, you must use  3   points to name the angle. The  middle   point named must be the vertex.

=================================================================

Explanation:

If we have a single triangle, and no other extra lines, then we can use single letters to name the three angles. Each vertex of the triangle corresponds to the vertex of that angle.

If you were to draw many triangles, in which some may or may not overlap, you'll mostly likely need to name the angle using 3 letters. This is so you are very specific about which angle you're talking about. The middle letter is always the vertex. The left and right letters are points on the arms of the angle. The order of the left and right letters doesn't matter as long as the middle letter stays the same. So something like angle ABC is the same as angle CBA.

Step-by-step explanation:

djjddjd dndbbdbsjsbsbsnsns

Answer:

216 cm squared

Step-by-step explanation:

14*12 for rectangle area=168  because of l*w

for the triangle: 12 * 8 =96/2=48 because of A=1/2 * b*h

area equals 168+48=216 cm squared

Answer:

First of all, the subjects Tammy used were from her math class. And of course, people from a math class probably like math more than other subject. Otherwise, why are they in math?

Step-by-step explanation:

#fax

Don't use my exact wording. Some of your points might be cut off.

Answer: For question number 9. It is C. 36

For question number 10. Your answer is A. 3/7

Have a nice day!

Answer:

9: D

10: D

Explination:

its D for 10 because there are four prime numbers in the equation 2, 3, 5, 7

Answer:

Independent

Step-by-step explanation:

Answer:

Independent

Step-by-step explanation:

Independent means whatever the outcome is it doesn't affect the other outcome. The number the the dice rolls will not determine what color it lands on

Answer:

156 - area

Step-by-step explanation:

The area is 156 square feet. You can subtract the area by two 3x 7 rectangular corners from the large 12 x 6 rectangle around the polygon.

Answer:

1.3%

Step-by-step explanation:

Answer:

1. The result can be shown in multiple forms.

Exact Form:

73/14

Decimal Form:

5.21428571…

Mixed Number Form:

5(3/14)

2. The result can be shown in multiple forms.

Exact Form: 15/72

Decimal Form: 78.5

Mixed Number Form: 7(8/12)

3. The result can be shown in multiple forms.

Exact Form: 1373/12

Decimal Form: 114.416

Mixed Number Form: 114(5/12)

4. The result can be shown in multiple forms.

Exact Form: 3079/744

Decimal Form: 4.13844086…

Mixed Number Form: 4(103/744)

Step-by-step explanation:

Answer:

h=square root of 55

area of triangle=15*square root of 5

Step-by-step explanation:

Answer:

a. 7.4 cm

b. 22.2 cm²

Step-by-step explanation:

a. Apply Pythagorean theorem to find h.

c² = a² + b²

Where,

c = 8 cm

a = 3 cm

b = h cm = ?

Plug in the values

8² = 3² + h²

64 = 9 + h²

64 - 9 = h²

55 = h²

h = √55

h ≈ 7.4 cm

b. Area of the triangle = ½*bh

b = 6 cm

h = 7.4 cm

Area = ½*6*7.4

Area = 22.2 cm²

Answer:

In space, astronauts lose fluid volume—including up to 22% of their blood volume. Because it has less blood to pump, the heart will atrophy.

Step-by-step explanation:

Why is this on math?

Answer:

Step-by-step explanation:

the given equation is 3x-5=7

so directly talking about results

3x=7+5

3x=12

x=4

now you have the given results now prepare this algebra tiles according to the results

Answer:

178.3 mm

Step-by-step explanation:

1) False

Adjacent angles must share a common side/ray.

2) B and D

Adjacent angles are those that are directly next to each other and share a common side.

3) C

Angles 1 and 2 are congruent. Angles 3 and 4 are congruent. Both of these pairs have angles that are opposite each other.

4) B

Angles 1 and 2 add up to 180. Angles 3 and 4 add up to 180. Both of these pairs of angles are supplementary.

5) A

These angles are directly next to each other and share a common side.

Hope this helps!! :)

Step-by-step explanation:

[tex]452 \\ \times 36[/tex]

16272

Answer:

16,272

Step-by-step explanation:

And a product is what the answer to a Multiplication problem is called

Answer:

y=10x

Step-by-step explanation:

The slope is 10/1 and it's positive.

Answer:

1/3

Step-by-step explanation:

First Spin: There are 3 but I have only 1 = 1/3

Second Spin: There are 4 but I have only 1 = 1/4

Answer:

Each angle is 60°

Step-by-step explanation:

The 2 angles are equal to each other because they're alternate exterior angles:

10x - 20 = 7x + 4

10x - 7x = 4 + 20

3x = 24

x = 8

10x - 20

10(8) - 20

80 - 20

60

Since these angles are exterior angles, their angle measures are equal so they both are 60°

Answer:

Pretty sure it's y = -3/2x+4

Step-by-step explanation:

Answer:

3.72

Step-by-step explanation:

ok so what i did was i did 2/5 of 9.3 and i got 3.72.

Answer:

B. 5 sq units

Step-by-step explanation:

9 - 4

5

Step-by-step explanation:

[tex]7x + 21 = 5x + 3 \\ 7x - 5x = -21 + 3 \\ 2x = - 19 \\ x = - 19 \div 2 \\ x = - 9.5[/tex]