Rotating the decagon by a multiple of ___ carries the decagon onto itself. Therefore, a rotation of ___ counterclockwise will carry the decagon onto itself. can reflect the decagon ___ different ways , including ____ ways using the lines of symmetry that pass through the midpoints of two opposite sides.
Which of the following the correct sequence to in the blanks above?
Answers
Answer: C
Step-by-step explanation:
i just did this problem and got it right
Decagon is a regular polygon with 10 sides. The correct option that fills up the blanks is given by: Option C: 36°, 72°, 10, 5
What is a decagon?A decagon is a regular polygon with 10 sides.
As shown in the diagram attached below, the angle between two line segments connecting center and two adjacent vertex is of 36°.
Since rotating the decagon by that angle will land it in an unidentifiable way, as it looks alike, thus, rotating the decagon by a multiple of __36°__ carries the decagon onto itself.
Therefore, a rotation of _36 degree or 72 degree or any multiple of 36 degree__ counterclockwise will carry the decagon onto itself.
If we connect one vertex to opposite one, and flip it on that connecting line(this flip is called reflection), then the decagon will look same as before reflection.Thera are 5 such different lines.
Now in addition, we can connect lines from mid point of 1 side to other opposite side too. And this also can be done in 5 ways. On these connecting lines too, the decagon can be reflected onto itself.
Thus, we can reflect the decagon _5+5=10_ different ways. (these are the only ways, and it can be proven mathematically).
And including __5__ ways using the lines of symmetry that pass through the midpoints of two opposite sides
Thus, the correct option that fills up the blanks is given by: Option C: 36°, 72°, 10, 5
Learn more about reflection symmetry here:
https://brainly.com/question/7783612
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Answer:
quatrolatiral, square, rectangle
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Answer:
x = 4
Step-by-step explanation:
7.5 + 7.5 = 15
[tex]\frac{x}{8}[/tex] = [tex]\frac{7.5}{15}[/tex]
cross multiply
15x = 60
divide
x = 4
or
since the bigger one is 2x smaller
8/2 = 4
X+1/2=x-1/2 true or false?
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4/7(21/8 x + 1/2) = -2(1/7 - 5/28x)
What is x in decimal form?
Answers
Answer:
x=[tex]1.22930[/tex]
Step-by-step explanation:
47(218 x+12 ) =−2(17 −528 x)
Simplify 47(218 x+12 ) : 327(21x+4) 327(21x+4) =−2(17 −528 x)
Multiply both sides by 7(21x+4)
327(21x+4) · 7(21x+4)=−2(17 −528 x)· 7(21x+4)
Simplify, 32=−14(17 −528 x)(21x+4)
Solve 32=−14(17 −528 x)(21x+4): x=32+4√589105 , x=32−4√589105 x=32+4√589105 , x=32−4√589105
Answer:
x = 0.5
Step-by-step explanation:
[tex]\frac{4}{7}(\frac{21}{8}x + \frac{1}{2}) = -2(\frac{1}{7} - \frac{5}{28}x)[/tex]
[tex]1\frac{1}{2}x + \frac{2}{7} = - \frac{2}{7} + \frac{5}{14}x[/tex]
[tex]1\frac{1}{2}x - \frac{5}{14}x + \frac{2}{7} = - \frac{2}{7} + \frac{5}{14}x - \frac{5}{14}x[/tex]
[tex]1\frac{1}{7}x + \frac{2}{7} = - \frac{2}{7}[/tex]
[tex]1\frac{1}{7}x + \frac{2}{7} - \frac{2}{7} = - \frac{2}{7} - \frac{2}{7}[/tex]
[tex]1\frac{1}{7}x = - \frac{4}{7}[/tex]
[tex]\frac{1\frac{1}{7}x}{1\frac{1}{7} } = \frac{- \frac{4}{7}}{1\frac{1}{7} }[/tex]
[tex]x = -\frac{1}{2}[/tex]
The area of a circular pizza is 200 inches.
What is the approximate length of the radius of the pizza.
Answers
Answer:
r = 31.85 in or 100/π
Step-by-step explanation:
area = πd
200 = 3.14d
d = 63.69
r = 1/2d
r = 31.85 in
An angle with measure seven pi over 4 radians is in standard position. In which quadrant does its terminal side lies
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Answer:
Step-by-step explanation:
PLEASE HELP ASAP!
Classify the polynomial, 8m^3–10m^2– 7, by degree and number of terms.
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Answer:
Step-by-step explanation:
The answer is m • (2m - 3) • (4m + 1)
PLEASE HELPPP
Richard divided a 1.954-L bottle of spicy tomato juice
equally among 5 glasses. How much juice is in each glass?
Answers
Answer:
390.8ml
Step-by-step explanation:
1.954 divided by 5=0.3908 litres
0.3908liters=390.8ml
help please ! need asap
Answers
Answer:
x° = 139
step 1 :
180 - (37 + 38)
= 180 - 75
= 105°
step 2 :
180 - 105
= 75°
step 3 :
180 - 116
= 64°
step 4 : this step to find the value of x
x° = 180° - (64 + 75)°
= 180° - 139°
= 41
x° = 41
#CMIIWAt a fundraiser, Marco's class sold 75% of their 80 baked
goods. How many baked goods did they sell?
Answers
Answer:
60
Step-by-step explanation:
They sold 60 baked goods because 75% of 80 is equal to 60.
Answer:
60 baked goods
Step-by-step explanation:
To find the answer to this question, you will need to multiply 80 by 75%.
Now this is very simple.
Some calculators will actually give you the option to multiply by a percent. Just type 80×75% and you'll get 60.
There is another way to do this.
You could also just solve 80×.75 due to the fact that .75 is equal to 75%.
Brainliest please
m(x)=1/x f(x)=2x-10 find the domain restriction of m(R(x))
Answers
Answer:
x ≠ 5Step-by-step explanation:
Given
m(x) = 1/xf(x) = 2x - 10Composite function
m(f(x)) = 1/ (2x - 10)The denominator can't be zero
2x - 10 ≠ 02x ≠ 10x ≠ 5What is the starting term of 64?
Answers
Answer:
1
Step-by-step explanation:
One is the starting term
1, 2, 4, 8, 16, 32, 64, 128, 256,
The scatterplot shows the relationship between the percentage of battery life remaining in 12 smoke detectors and the number of months that the batteries have been in the smoke detectors.
Based on the scatterplot, what is the best prediction of the number of months it would take for the battery in a smoke detector to have 20 percent battery life remaining?
A-9 months
B-7 months
C-11 months
D-6 months
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What is the volume of a hemisphere with a radius of 3.1 in, rounded to the nearest tenth of a cubic inch?
Pls help me
Answers
Answer:
Formula: V = (2/3) π r 3.
Radius is 3cm.
So, now we can plug it in to solve for the volume.
V = (2/3) π 3^3
First, let's multiply 3^3.
3^3 = 27
Then, 27 x π = 84.82
After, multiply by 2/3.
84.82 x 2/3 = 56.55
Lastly, round 56.55 to the nearest tenth of a cubic centimeter.
56.55 = 56.6
Therefore the volume of a hemisphere with a radius of 3cm is 56.6cm^3.
Step-by-step explanation:
hoped this helped
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Answers
Answer:
27/64
Step-by-step explanation:
(3/4)^3 = 27/64
A store selling the calculators donates $90 to charity
from the profit of $500 worth of calculators. If they sell
$200 worth of calculators and donate at the same rate,
how much money would be given to charity?
Answers
Answer:
Will be reveled in part B.
Step-by-step Part A
Using O P N Chart for the profits of $500
O P N represent Original, Part Percent and New original.
O $500 ║100%
P $410║-18%
N $90 ║82%
I got $410 which is my part percent by subtracting the original by the New original. (500 - 90 = 410)
Now to solve for the part percent and New original which we will know how much money would be given to charity?
Solving for part percent
Part percent x org = Part
(X) x 500 = 90
500x = 90
500 500
x = 0.18 = 18%.
If they sell $500 worth of calculators and donates $90 to charity they are left with $410 and they gave the charity 82%
Part B:
O: $90 ║ 100%
P: $110 ║-18%
N: $200 ║82%
So this tells me that the charity recived $110.
Answer the question please which of the following shows numbers in order from least to greatest
Answers
Answer:
I think it's b I'm not sure I'm sorry if it's wrong
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PLEASE ANSWER QUICK!
Simplify the expression 7(2g+7)-4
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=[tex]\frac{mv^{2} }{2}[/tex] ; Solve for v.
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Answer:
[tex]v=\sqrt{\frac{2E}{m} }[/tex]
Step-by-step explanation:
[tex]E=\frac{mv^2}{2}[/tex]
[tex]2E=mv^2}[/tex]
[tex]v^2=\frac{2E}{m}[/tex]
[tex]v=\sqrt{\frac{2E}{m} }[/tex]
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Answer: its 28
Step-by-step explanation:
Solve the quadratic equation by factoring.
6x 2 + 24x = 0
Answers
Answer:
x=0
2(3x+12x)
FACTORED ANSWER
2(15)x)
Step-by-step explanation:
Answer:
[tex]x = 0[/tex]
Step-by-step explanation:
Factor 6x⋅2 out of 6x⋅2+24x.
[tex]6x \times (2(1 + 2)) = 0[/tex]
Multiply 2 by 6.
[tex]12x(1 + 2) = 0[/tex]
Add 1 and 2.
[tex]12x \times 3 = 0[/tex]
multiply 3 by 12.
[tex]36x = 0[/tex]
Divide each term by 36 and simplify.
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therefor, the answer is 0.
Jefferson purchased a jacket originally
priced $129 on sale for $90.30. What was the
percent of discount?
Answers
The double number line shows the amount of time a hen needs to lay 1 egg.
Complete the table to show the same information as the double number line.
Eggs Time (hours)
3
100
12
Answers
I realize the double number line in this exercise can be as shown in the attached image, in that case, the table, correctly completed is:
Eggs Time (hours)
3 75
4 100
12 300
Method to complete the table.
First, you must see the double number line (attached image), in this we identify a hen needs 25 hours to lay 1 egg, by this reason, to identify the time required for a certain number of eggs, just multiply the number of eggs by 25 (the number of hours shown on the double number line), then:
3 * 25 = 7512 * 25 = 300To calculate the number of eggs taking into account the time, you must divide the hours by 25:
100 / 25 = 4In this way, you can check that the answers are 75, 4, and 300 respectively, to complete the table in the correct form.
You can review more exercises and test your new knowledge about the double number line at the following link: https://brainly.com/question/13553589?referrer=searchResults
Answer: eggs time
3 75
4 100
12 300
Step-by-step explanation:
What value is missing from the table
Answers
Answer: it think its A
Step-by-step explanation:
Which of the data sets below has a mean of 32? Select all that apply.
A) 45, 21, 33, 29
B) 18, 54, 24
C) 14, 56, 34, 18, 23
D) 34, 35, 21, 29, 46
Answers
Answer:
B is the correct answer
Step-by-step explanation: When you add 18+54+24=96 divide 96 by 3 and its 32!
12
B
4
E
D
3
A
Link= REPORT
(A) 4
(B) 5
(C) 3
(D) 6
Someone pls help!!
Answers
Answer:
i would say B
Step-by-step explanation:
In Winter of 2020 there were 20 total inches of snow. In Winter 2021 there were 38 total inches of snow. What was the percer
increase in inches of snow from 2020 to 2021?
Answers
To find the answer, you need to subtract the total inches of snow in 2021 by the total inches of snow in 2020.
So 38 -20= 18
Therefore, from 2020 to 2021. The snow increased by 18 inches.
Hope this helped!
Math\Angles
Find the missing angle
Answers
Answer:
x = 180° - 72° = 108°
Because x and 72 degrees are supplementary angles.
Look at the attached screenshot for my answer!!! Hope this helps!! Have a wonderful life now!!!