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
IgorLugansk [536]
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:
Nina [5.8K]3 years ago
7 0

Answer:

One invariant point;

Point A = (2, 0)

Step-by-step explanation:

The coordinates of the square vertices are;

O = (0, 0)

A = (2, 0)

B = (2, 2)

C = (0, 2)

Therefore, we have by 90° clockwise rotation;

O' = (2, 2)

A' = (2, 0)

B' = (4, 0)

C' = (2, 4)

Therefore, since only A' (2, 0) = A (2, 0), we have only one invariant point on the perimeter of the square when it is rotated 90° about the center (2, 0) which is the point A = (2, 0).

You might be interested in
Evaluate the expression when b= 3 and c = -4 <br><br>b - 4c ​
Sedaia [141]

Answer:

15.

c is a negative

3 - (-12)

15

5 0
2 years ago
Amy raises $58.75 to participate in a walk a thon. Jeremy raises $23.250more than Amy. Oscar raises 3 times as much as Jeremy. H
stiv31 [10]
1. 58.75 + 23.25 = 82
2. 82*3 = 246

Oscar raised $246
3 0
3 years ago
Read 2 more answers
Adena used a qualateral in her ary design. The quadrlateral has no sides ,and only one pair of opposite sides parallel what shap
Radda [10]

Answer: The quadrilateral used here is a trapezium.




3 0
3 years ago
A recipe needs 4/5 cups of butter for every 2 cups of flour. If you plan to use 3 cups of flour, how much butter will you need?
DedPeter [7]

Answer:

1 1/5 cups of butter

Step-by-step explanation:

4/5=2

      =3

 4/5 x 3=12/5

12/5 / 2

12/5 x 1/2=1 1/5

7 0
3 years ago
Read 2 more answers
Last week Lisa had gross earning of $441.30. Cathy receives a base salary of $375 and a commision on sales exceeding her quota o
vova2212 [387]

Answer:

4.25%

Step-by-step explanation:

<u>Step 1: Calculate the commission paid</u>

<em>Commission = Gross earning - base salary</em>

<em>Commission = 441.3 - 375</em>

Commission = 66.3

<u>Step 2: Calculate the commission sales</u>

<em>Commission sales = Total sales - quota sales</em>

<em>Commission sales = 6560 - 5000</em>

Commission sales = 1560

<u>Step 3: Calculate the rate of commission</u>

<em>x% of 1560 = 66.3</em>

<em>x% * 1560 = 66.3</em>

<em>x% = 0.0425</em>

x = 4.25%

Therefore, the rate of commission was 4.25%.

!!

6 0
3 years ago
Other questions:
  • 3/4*5. u will get followed answer this
    6·1 answer
  • What is the smallest number 13, 0.13, 1.03, 0.103, 1.3
    7·2 answers
  • Multiply and reduce to lowest form 1 2/5×1 7/10
    8·1 answer
  • A teacher surveyed his class about how many wore watches and how many wore rings. The Venn diagram shows her results. If a perso
    6·2 answers
  • Will mark brainliest plz help!
    10·1 answer
  • A certain element has a half life of 4.5 billion years. a. You find a rock containing a mixture of the element and lead. You det
    7·1 answer
  • There were 250 students attending a socon basketball game each row have 15 students how many rows are completely full how many s
    15·1 answer
  • Find the area of this rectangle<br>7 in<br>10 in​
    7·1 answer
  • Write down in terms of n, an expression for the nth term
    10·2 answers
  • 2.8 = w - 4.9 w = _____
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!