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
Dmitry [639]
3 years ago
13

Square OABC is drawn on a centimetre grid. O is (0,0) A is (2,0) B is (2,2) C is (0,2) Write down how many invariant points ther

e are on the perimeter of the square when OABC is rotated 90 degrees clockwise, centre (2,0).

Mathematics
1 answer:
ANTONII [103]3 years ago
7 0

Answer:

There is one point: A (x, y) = (2, 0)

Step-by-step explanation:

A point of the square OABC is invariant only if its location coincides with location of the rotation axis, that is, that such point experiments only rotation, no translation in any form. The center of rotation coincides with the location of one of the vertices of the square and, therefore, there is one invariant point on the perimeter: A (x, y) = (2, 0)

You might be interested in
Celia simplified the expression Negative 4 x (1 minus 3) minus (2 x + 2). She checked her work by letting x = 5 in both expressi
guapka [62]

Answer:

6x-2

Step-by-step explanation:

-4x(1-3)-(2x+2)

= 4x+12x-2x-2

6x-2

(simplify)

8 0
2 years ago
Which expression is equivalent to 144^3/2
Tju [1.3M]

Answer:

\large\boxed{144^\frac{3}{2}=1728}

Step-by-step explanation:

\sqrt[n]{a^m}=a^\frac{m}{n}\\\\144^\frac{3}{2}=144^{1\frac{1}{2}}=144^{1+\frac{1}{2}}\qquad\text{use}\ a^na^m=a^{n+m}\\\\=144^1\cdot144^{\frac{1}{2}}=144\sqrt{144}=144\cdot12=1728

6 0
3 years ago
Find the equation of the line which passes through (-2,-2) and (2,-4).​
Lena [83]
See photo hope it helps

5 0
3 years ago
Read 2 more answers
Find the area of the shaded region. Round your answer to the nearest tenth if needed.<br><br> 4B
AlexFokin [52]

Answer:

136.1 inches

Step-by-step explanation:

area of a circle is r^2 x pi

this is 3/4 of a circle

1. so 3/4 x 7.6^2xpi

2. 3/4 x 57.76 x pi

3. .75 x 57.76 x pi

4. 136.1

5 0
3 years ago
Can someone help, please?
Sunny_sXe [5.5K]
You have to first mess around with the first shape, ABCD, and split that into a rectangle and a right triangle. once you do that, it's pretty painstaking, but simple.

if you look at it you can tell that EFGH is just half the size, but the same ratios and everything.

So, you would just take every perimeter measurement from ABCD, and divide it by two and then sum them together.

2.5 + 1.5 + 4.0 + 2.0 = 10
6 0
3 years ago
Other questions:
  • The relationship between women's whole-number shoe sizes and foot lengths is an arithmetic sequence, where an is the foot length
    11·2 answers
  • What’s the slope of the line that passes through (3,5) and (2,6)
    14·2 answers
  • Factor the expression using the GCF <br> 2+8
    7·2 answers
  • Draw a line segment and copy it to the right of the original segment. Explain your steps and justify each step used.
    8·2 answers
  • Which expression is equivalent to the area of metal sheet required to make this square-shaped traffic sign?
    15·2 answers
  • The graph of the parent function f(x) = x3 is transformed such that g(x) = f(–2x). How does the graph of g(x) compare to the gra
    12·1 answer
  • In the following ordinary annuity, the interest is compounded with each payment, and the payment is made at the end of the compo
    11·1 answer
  • What is one half divided by 8
    13·2 answers
  • 5.62 (6.2+6.2) divided by 2
    6·2 answers
  • (-14)x=+56??????????????????????
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!