1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Monica [59]
3 years ago
9

A regular octagon rotates 360° about its center. How many times does the image of the octagon coincide with the preimage during

the rotation?
A.) 1
B.) 2
C.) 4
D.) 8
Mathematics
2 answers:
ycow [4]3 years ago
4 0
Given that the octagon rotates 360 degrees, it is a given that for every regular division of the polygon (360/8 = 45 degrees), the image would coincide with the pre-image during the rotation. Therefore, the octagon would coincide a total of 8 times as it rotates 360 degrees about its center. 
S_A_V [24]3 years ago
4 0

Answer:

8

Step-by-step explanation:

You might be interested in
If 29% of the students wore jeans what percent of he students did not wear jeans?
igor_vitrenko [27]

So you just take 100% - 29% = 71%

So 71% of the students did not wear jeans


7 0
3 years ago
Angle of a triangle measures 115° the other two angles are in the ratio of 4:9 what are the measures of those two angles
nasty-shy [4]

Answer:

20, 45

Step-by-step explanation:

A triangle has 180 degrees interior angle measure. One angle measure 115 so that means the other two angles  must add up to 65.

The remaning angles form a ratio of 4:9. This means we must split 65 into a ratio of. 4:9

A ratio partition parts of something. We can add the ratio intergers to find it full length.

4+9=13.

Divide 65/13=5.

Multiply 5x4 and 5x9 serpately.

We get 20 and 45

6 0
3 years ago
If you need $8000 to travel to Europe after you graduate in 4 year. How much would your monthly deposits need to be if your acco
lina2011 [118]
\bf \qquad \qquad \textit{Future Value of an ordinary annuity}\\
\left. \qquad \qquad \right.(\textit{payments at the end of the period})
\\\\
A=pymnt\left[ \cfrac{\left( 1+\frac{r}{n} \right)^{nt}-1}{\frac{r}{n}} \right]

\bf \qquad 
\begin{cases}
A=
\begin{array}{llll}
\textit{accumulated amount}\\
\end{array}\to &
\begin{array}{llll}
8000
\end{array}\\
pymnt=\textit{periodic payments}\\
r=rate\to 5\%\to \frac{5}{100}\to &0.05\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{monthly, thus twelve}
\end{array}\to &12\\
t=years\to &4
\end{cases}

\bf 8000=pymnt\left[ \cfrac{\left( 1+\frac{0.05}{12} \right)^{12\cdot 4}-1}{\frac{0.05}{12}} \right]
\\\\\\
\cfrac{8000}{\left[ \frac{\left( 1+\frac{0.05}{12} \right)^{12\cdot 4}-1}{\frac{0.05}{12}} \right]}=pymnt\implies \cfrac{8000}{\frac{\left( \frac{241}{240} \right)^{48}-1}{\frac{1}{240}}}=pymnt
\\\\\\
\cfrac{8000}{53.0148852}\approx pymnt\implies 150.9010152318\approx pymnt
6 0
3 years ago
What is -2y + 10 +2y -8 simpilified?​
Naily [24]

Answer:

2

Step-by-step explanation:

-2y+10+2y-8

-2y+2y+10-8

10-8

2

7 0
3 years ago
Read 2 more answers
SUB TO YFBG JAY ASAP
AleksAgata [21]

Answer:

I done did it.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Total surface area of the drawing
    12·1 answer
  • a building is 2ft from a 12 ft fence that surrounds the property a worker wants to wash a window in the building 17 ft from the
    5·1 answer
  • a rectangular prism is 11 3/5 meters long and 9 meters wide and 12 1/2 meters high what is the volume in cubic meters of the pri
    11·2 answers
  • Why does it take 30 years to pay off 150,000 loan , even though you pay 1000 a month
    12·2 answers
  • Inez has 27 basketball cards and 45 baseball cards in her card collection. What time is the ratio of Inez’s baseball cards to he
    7·1 answer
  • 52÷875 as a mixed number with an explanation.
    8·2 answers
  • HOW MANY LBS ARE IN 96 OZ SHOW WORK
    14·2 answers
  • mr.tucker has four sockets in his tool chest that are labeled 3/4 in., 3/16in., 11/32in., and 1/8 in. order the sizes of sockets
    13·1 answer
  • Which graph is represents the function f(x)=3x-2/x-2
    11·1 answer
  • The ________________ measures the spread of the middle 50% of the data set.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!