I don't understand this

Answer:

Perimeter [tex]\sqrt{26}+\sqrt{5}+\sqrt{10}+\sqrt{17}[/tex] units.  Area 12 square units.

Step-by-step explanation:

Perimeter: total distance around the figure.

Distance Formula:  the distance between points [tex]\left(x_1,y_1\right) \text{ and } \left(x_2,y_2\right)[/tex] is

[tex]d=\sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}[/tex]

[tex]AB=\sqrt{(6-1)^2+(2-1)^2}=\sqrt{25+1}=\sqrt{26}[/tex]

[tex]BC=\sqrt{(5-6)^2+(4-2)^2}=\sqrt{1+4}=\sqrt{5}[/tex][tex]CD=\sqrt{(2-5)^2+(5-4)^2}=\sqrt{9+1}=\sqrt{10}[/tex][tex]DA=\sqrt{(1-2)^2+(1-5)^2}=\sqrt{1+16}=\sqrt{17}[/tex]

The perimeter is the sum of all those segment lengths.

One way to find the area of the figure is to surround it with a rectangle, insert some lines so that the areas you do not want can be found and subtracted from the rectangle's area.  (See attached image.)

The area of the large rectangle around the figure is 5 x 4 = 20 square units.

The triangles have areas 1/2 (base) (height):

A. (1/2)(1)(4) = 2 square units

B. (1/2)(3)(1) = 1.5 square units

D. (1/2)(1)(2) = 1 square unit

E. (1/2)(5)(1) = 2.5 square units

Square C.  (1)(1) = 1 square unit

Total of all the area you don't want to include:

2 + 1.5 + 1 + 2.5 + 1 = 8 square units

Subtract 8 from the surrounding rectangle's area of 20, and you get the area of the figure is 20 - 8 = 12 square units.

Answer:

a. east

b. 60 feet per second

Step-by-step explanation:

did this a while ago.

a. -180 is east, 120 is east. the car is traveling east because it is moving positive. read the last sentence of the description.

b. to calculate velocity you do time times position. in this case position is 60 and time is 1 so 60*1 is 60. so it is 60 feet per second.

Answer: 1.75=5n

Step-by-step explanation:

1.75 is being divided by n 5 times

Answer:

Some People Have Curly Brown Hair Turns Permanently Black

Step-by-step explanation:

Sin=p/h

Cos=b/h

Tan=p/b

Answer:

"SOHCAHTOA" is a helpful mnemonic for remembering the definitions of the trigonometric functions sine, cosine, and tangent i.e., sine equals opposite over hypotenuse, cosine equals adjacent over hypotenuse, and tangent equals opposite over adjacent, (1) (2) (3) Other mnemonics include.

Step-by-step explanation:

Answer:

absolutely nothing

Step-by-step explanation:

lol im joking but i have learned how to use a bar model and how to use a x and y axis

Answer:

Well, I think my best accomplishment was being able to pass Algebra, I don't think I would be where I am had I not had the best teacher in the world, and honestly I thank her so much for having the patients to deal with me, an anxiety filled ADHD, hyper teen  

Step-by-step explanation:

Answer:

D. $350

Step-by-step explanation:

On the 5th month, he has $500, on the 10th month, he has $850. Subtract $500 from $850 to get the average on $350

Answer:

should be about 350 I think I did this problem before sooo

Step-by-step explanation:

I'm not good at explaining

Answer:

E. 128°

Step-by-step explanation:

Answer:

41.16 m³

Step-by-step explanation:

Volume = area triangle x height

1/2(2.8x4.2) = 1/2( 11.76) = 5.88

5.88 x 7 = 41.16

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer: $1,116.19

Step-by-step explanation:

If you invested $243 and this increased to $1,359.19 in two years, the difference between your investment and its current worth is the interest:

= Current principal - Initial principal

= 1,359.19 - 243

= $1,116.19

Answer:

slope is -5\2

Step-by-step explanation:

use the point point slope formula

Answer:

Step-by-step explanation:z

Answer:

The answer is "2653".

Step-by-step explanation:

[tex]Sample \ Size = 99\% \ Cl\\\\ E =60 \\\\\sigma= 1200\\\\[/tex]

Minimum sample size for Cl level [tex]= 99\%[/tex] and Desired Margin of Error, [tex]E = 60[/tex] is:  

[tex]\to P(|\bar{x}-\mu| < E) \geq 1-\alpha \\\\\to P(\frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt{n}}} <- \frac{E}{\frac{\sigma}{\sqrt{n}}}) \leq \frac{\alpha}{2} \\\\\to - \frac{E}{\frac{\sigma}{\sqrt{n}}} \leq -z_{\frac{\alpha}{2}} \\\\\to n\geq (\frac{ z_{\frac{\alpha}{2} \times \alpha} }{E})^2 \\\\[/tex]

[tex]Margin \ Error = \frac{\text{length of the CI}}{2}\\\\\sigma=1200\\\\\alpha=1 - Confidence =1-0.99=0.01\\\\Z_{\frac{\alpha}{2}}=z_{0.005}=2.58\\\\n\geq (\frac{z_{0.005} \times \sigma }{E})^2 \\\\= (\frac{2.58 \times 1200 }{60})^2\\\\=2662.560\\[/tex]

The minimum n has to be integer, we take the ceiling Of above number and get n = 2663

The exact z-value.

[tex]n \geq (\frac{2.5758293035489 \times 1200}{60})^2 \\\\= 2653.95864[/tex]

using critical value of 2,575, which gives 2652.25  

[tex]\to n =2653[/tex]

Answer:

-47

Step-by-step explanation:

Given the  arithmetic sequence described by the formula;

a= -2(n - 1) + 7

To get a28, we will substitute n = 28 into the expression

a28 = -2(28-1)+7

a28 = -2(27)+7

a28 = -54+7

a28 = -47

Hence a28 is -47

Answer:

7 yd^3

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

343pi^3

Step-by-step explanation:

Volume of a cone = 1/3(nr^2h)

n = 22/7

r = radius  

h = height

Base area = area of a circle

Area of a circle = πr²

49 pi = πr²

r² = 49

r = 7

h = 7 x 3 = 21

volume = 1/3 x 21 x 7^2 = 343pi

Answer:

it is 1/3

Step-by-step explanation:

also you can type (1/9)x3 into g o o g l e

pls mark brainliest (it is the crown)

Answer:

1/3

Step-by-step explanation:

3/9 = 1/3

have a great day!

Answer:

B) 1/5

Step-by-step explanation:

Answer:

I think that the answer is 47.25

The correct statements are:

- The coordinate pair (-2, 1) represents a point on the graph and a solution to the equation.

-The coordinate pair (-4, -8) represents a point on the graph and a solution to the equation.

Options C and E are the correct answer.

We have,

The equation y = 4x + 8 represents a linear relationship between x and y.

To determine which statements are correct, we need to substitute the x-coordinate of each given coordinate pair into the equation and see if it satisfies the equation.

A) The coordinate pair (0, 10)

Substituting x = 0 into the equation: y = 4(0) + 8 = 8

So, (0, 10) does not satisfy the equation.

Statement A is incorrect.

B) The coordinate pair (-1, 4)

Substituting x = -1 into the equation: y = 4(-1) + 8 = 4 + 8 = 12

So, (−1, 4) does not satisfy the equation.

Statement B is incorrect.

C) The coordinate pair (-2, 1)

Substituting x = -2 into the equation: y = 4(-2) + 8 = -8 + 8 = 0

So, (−2, 1) does satisfy the equation.

Statement C is correct.

D) The coordinate pair (-3, 2)

Substituting x = -3 into the equation: y = 4(-3) + 8 = -12 + 8 = -4

So, (−3, 2) does not satisfy the equation.

Statement D is incorrect.

E) The coordinate pair (-4, -8)

Substituting x = -4 into the equation: y = 4(-4) + 8 = -16 + 8 = -8

So, (−4, -8) does satisfy the equation.

Statement E is correct.

Therefore,

The correct statements are:

- The coordinate pair (-2, 1) represents a point on the graph and a solution to the equation.

-The coordinate pair (-4, -8) represents a point on the graph and a solution to the equation.

Learn more about coordinates here:

https://brainly.com/question/13118993

#SPJ6

Answer:

11/12

Step-by-step explanation:

Answer:

hgggggggggggggggggggggggggggggggggjkghjgjkkkkkkkkkkkkkkkkkkkkkkkkkkkkk

Step-by-step explanation:

Answer:

1 & 1

Step-by-step explanation:

Answer:

72.22

Step-by-step explanation:

Answer:

1/3 x 8^2×pi(3.14)

Step-by-step explanation:

1/3 × 64 × 3.14

[tex]21 \frac{1}{3} \pi[/tex]

Answer:

x=-3.7

Step-by-step explanation:

Answer:

14x14x14x14x14=14.5

Step-by-step explanation:

Step-by-step explanation:

hope it is helpful to you