Which of these figures are considered polygons?​

Answer:

The solution to this graph is (3, -3)

Answer:

D.) 144 ft2

Step-by-step explanation:

find the area of triangle

formula:

1/2xbxh

1/2x2x8

8

Multiply by 2

16

move both triangles to create a rectangle

18x8

144ft2

Thank you :)

Answer:

Ummmm

Step-by-step explanation:

Answer:

0.571428571

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

4 divided by 7 = 0.5714 around 1

Hey there!

2/3 = a/30

First: you have to CROSS MULTIPLY the given numbers

2(30) = 3(a)

2(30) = 60

3(a) = 3a

New EQUATION: 3a = 60

Second: DIVIDE 3 to BOTH SIDES

3a/3 = 60/3

CANCEL out: 3/3 because that gives you 1

KEEP: 60/3 because that helps you solve for your a-value

60/3 = a

60/3 = 20

Therefore, your answer is: a = 20

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

Answer:

Step-by-step explanation:

-4÷2 = -2

8÷(-4) = -2

-16÷8 = -2

So this is a geometric sequence with the first term of 2 and a common ratio of -2

the nth term of a geometric sequence:  [tex]a_n=a_1\cdot r^{n-1}[/tex]

Therefore:

            [tex]a_n=2\cdot(-2)^{n-1}\\\\a_n=2\cdot(-1\cdot2)^{n-1}=2\cdot(-1)^{n-1}\cdot2^{n-1}=(-1)^{n-1}\cdot2^{n-1+1}\\\\a_n=(-1)^{n-1}\cdot2^{n}[/tex]

Answer:

2(-2)^n-1

Step-by-step explanation:

Correct on Odyssey assignment. Hope this helps.

Answer:

17

Step-by-step explanation:

If we are finding the long angled side (the hypotenuse), we must keep in mind the Pythagorean theorem. This states that in order to find the answer, we must follow: A squared + B squared = C squared. A and B are known as the legs and we use these for A and B. After squaring both 15 and 8 we get 225 + 64= 289. Now that we have our answer of 289, we can square this to find our hypotenuse which is 17. To find the square root, you multiply different numbers by themselves until you reach your answer. 17 x 17 = 289 so the hypotenuse is 17 centimeters long. I hope this helps! :)

Answer:

slope= -5

Step-by-step explanation:

Correct Me, If i am Wrong.

Answer: Caiden's Car gets the highest rate... 16.2 mpg Ethans car 15 mpg

To "show work"  Ethan's car only gives 15 mpg. When you look at the graph where the points are at both whole numbers you divide... 30 miles every 2 gallons..... Well whats one gallon? you the divide 30 by 2 and that is 15.

same as the point (5,60)      60/5 is 15

Answer:

The answer would be B.

Step-by-step explanation:

It couldn't be A because it  just doesn't make sense because if the dot means a student then what are the numbers on the bottom mean.

It also couldn't be D because nowhere does it say anything about teachers.

Hope this Helps! :)

Answer: The error is the number of sides, it should be 9 sides and not 25. Correct is 1 260 degrees

Step-by-step explanation:

The error is the number of sides, it should be 9 sides and not 25.

Polygon sum of interior angles formula: 180 x (n-2)

So here n = 9 (sides)

180 x (9-2)

180 x 7 = 1 260 degrees

Answer:

sum of interior angles = 180 * n - 2

n = number of sides

in this case, the shape has 9 sides so n = 9

so the correct answer should be

= 180 * (9-2)

= 180 * 7

= 1260

Answer:

33.33

Percentage Calculator: 120 is what percent of 360? = 33.33.

Answer:

(n +54)/9 = 21; 135= n

Step-by-step explanation:

(n+54)/9 = 21

n+54/9 *9= 21*9

n+54-54 = 189-54

n= 135

the first part is simply recognizing the order its written and the words used.

So to start off with, they use the turn "a number" so we know there's going to be some form of a variable. From there it says "increased by" rather than "multiplied" or "doubled" or something of that nature, so we know its adding 54 rather than multiplying. Then, the next part says that "the sum" which is another key term for addition, "is then divided by 9". So we can assume so far that a variable plus 54 is added together to get a number, which is then going to be taken and divided by 9. The last part says "the result is 21", which simply means that we need to end up with 21.

So once we gather all this information, we can put it together as so: (n +54)/ 9 = 21.

I put parentheses around the n + 54 to make sure that the equation is following the system of equations (PEMDAS).

Answer: the answers should be 15.2% of 30 = 4.56

Step-by-step explanation:

The sum of the given expression will be equal to -3.

Algebra is the study of mathematical symbols and the rules for manipulating them in formulas; it is a common thread that runs through practically all of mathematics.

given expression:

=[tex]\left[\begin{array}{c}2&3\end{array}\right][/tex]  + [tex]\left[\begin{array}{c}-5&6\end{array}\right][/tex]

= [tex]\left[\begin{array}{c}2 +(-5)&3+6\end{array}\right][/tex]

=[tex]\left[\begin{array}{c}-3&9\end{array}\right][/tex]

hence, the sum of the given expression -3.

To know more about Algebra follow

brainly.com/question/723406

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Answer:

$5x + $4y ≤ $120

let x = 10

y = 5

$70  ≤ 120

Step-by-step explanation:

Note that

> means greater than

< means less than

≥  means greater or equal to

≤ means less than or equal to

the total amount Shanley has is $120. She can spend less than this amount or the amount exactly. So, the inequality sign to be used is ≤

$5x + $4y ≤ $120

let x = 10

y = 5

(50) + 20  ≤ 120

$70 ≤  120

Answer:

l =10 units, 9.7 units, 5.5 units

Step-by-step explanation:

Area = length x breadth

Area of a square = l^2

100= l^2

√100 =√l^2

l=10 units

95=l^2

√95 = √l^2

l= 9.7 units

30=l^2

√30=√l^2

l= 5.5 units

Answer:

y = 0.6x - 5

Step-by-step explanation:

The distance between the y-intercept of f(x) = x^2 + 7x - 18 and the y-intercept of the table is 23 units

The function f(x) is given as:

f(x) = x^2 + 7x - 18

The y-intercept is when x = 0.

So, we have:

f(0) = 0^2 + 7(0) - 18

Evaluate

f(0) = -18

For the table, start by calculating the slope (m)

m = 11 - 2/10 + 5

m = 0.6

The y-intercept is then calculated using:

b = y - mx

So, we have:

b = 11 - 0.6 * 10

Evaluate

b = 5

This means that:

y-intercept = 5

The difference between both values is:

Difference = |-18- 5|

Evaluate

Difference = 23

Hence, the distance between the y-intercept of f(x) = x^2 + 7x - 18 and the y-intercept of the table is 23 units

Read more about y-intercept at:

https://brainly.com/question/1884491

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Answer:

-8 km

Step-by-step explanation:

Answer:

1,900 votes were in favor.

Step-by-step explanation:

Given that the statement indicates that 95% of the 2,000 votes were in favor, you can find the number of votes in favor by calculating the 95% of the total number of votes:

2000*95%=1900

According to this, the answer is that 1,900 votes were in favor.

Answer:

No error

Step-by-step explanation:

Nothing to explain

Answer:

Noah did not make any errors

Step-by-step explanation:

The median is a list of strictly increasing numbers is simply the middle number. if there's an even number of numbers in the list,  then the median is the average of the middle terms.

here, the numbers are 115, 109, 117, 136, 127, 131. when ordered from least to greatest we get 109, 115, 117, 127, 131, 136 which is what Noah got.

since there are 6 numbers (6 is even), the median will be the average of the middle two numbers which are 117 and 127: (117+127)/2=244/2=122

so Noah is was correct.

Answer:

A and B

Step-by-step explanation:

they are both equal to 1

Answer:

A and B

Step-by-step explanation:

Answer: 6hrs & 16mins

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

increase in 15% therefore 1.15% of principal amount

$27355 times 1.15= $31458.25

$31458.25 times 1.15=$36,176.8975

$36,176.8975 times 1.15= $41603.53563

round all answers to the nearest dollar and you get

$31, 458, $36, 177, $41,604

so answer c

this is because 1lb is equal to 0.0625oz

Answer:

y=-x-10

Step-by-step explanation: