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
romanna [79]
3 years ago
13

13. Write a rule for each counterclockwise rotation about the origin:

Mathematics
1 answer:
ryzh [129]3 years ago
4 0

Answer:

180 degrees

(x,y) becomes (-x,-y)

270 degrees

(x,y) becomes (y,-x)

90 degrees

(x,y) becomes (-y,x)

Step-by-step explanation:

Here, we want to write a rule for each of the counterclockwise rotation

The rule are as follows;

180 degrees

(x,y) becomes (-x,-y)

270 degrees

(x,y) becomes (y,-x)

90 degrees

(x,y) becomes (-y,x)

You might be interested in
Which of the following is equal to7 1/4?
Ivenika [448]

Answer:

B. \sqrt[4]{7}

{7}^{ \frac{1}{4} }  =  \sqrt[4]{7}

5 0
2 years ago
Read 2 more answers
A dilation has center (0, 0). Find the image of each point for the given scale factor.
pshichka [43]

Answer:

A. (−3,5)

Step-by-step explanation:

The rule for dilation by scale factor k is given by:

(x,y)\to (kx,ky)

The given point is P(-3,5) and the scale factor is k=1

We substitute the point and the scale factor into the rule to get:

P(-3,5)\to P'(-3\times1,5\times1)

This gives us:

P(-3,5)\to P'(-3,5)

The correct answer is A

3 0
3 years ago
Which of these quadrilateral types must have all four sides congruent?
Paraphin [41]
C. Square & rhombus
3 0
2 years ago
Read 2 more answers
Before beginning voice lessons, Wanda already knew how to sing 19 pieces, and she expects to learn 1 new piece during each week
irakobra [83]

Answer:

19+12 = 31 pieces

Step-by-step explanation:

4 0
2 years ago
a wrestler is weighing in for their match this evening. their normal weight is 168 pounds, but that weight can vary by as much a
Natalija [7]

<em>Introduction </em>

<em>Wrestling is a wonderful activity with many advantages for the student-athlete. It is a sport that is highly </em>

<em>competitive, exciting and satisfying. It is a sport that provides for individual and team competition. It is - </em>

<em>and should be - fun. Unfortunately, the practice of losing weight by not eating, restricting fluid intake and </em>

<em>over-exercising reduces the sport's fun. This information is presented to help clear up misconceptions </em>

<em>regarding wrestling and weight loss. I also hope to give some guidance to those who desire to manage </em>

<em>their weight properly in preparation for and during the wrestling season. </em>

<em>History and Stigma </em>

<em>For too long, the wrestling community has unthinkingly accepted the myth that to be a good wrestler, you </em>

<em>must cut weight. The generally accepted thinking is something like this: if your natural weight is 135 </em>

<em>pounds, you may be a good wrestler at 135 pounds. But if you wrestle at 130 pounds, you'll be a better </em>

<em>wrestler. And if you can make it down to 125, you'll be a state champion. No facts support that widely held </em>

<em>view, yet wrestlers and parents subscribe to that faulty reasoning. Looking further back, many remember </em>

<em>the days that losing excessive weight was a specific practice and expectation among wrestlers. It was </em>

<em>supposed to teach sacrifice, commitment, and the idea of “No Pain, No Gain.” </em>

<em>Regardless of the current attitude of the majority of the wrestling community, the stigma that an unhealthy </em>

<em>loss of weight is a requirement of wrestling among outside observers sticks. The Virginia High School </em>

<em>League has followed national guidelines to establish rules that encourage healthy weight management </em>

<em>among wrestlers. </em>

<em>Current Regulations </em>

<em>Preseason weight certification is accomplished with three steps. The first is determining each wrestler’s </em>

<em>body fat percentage using skin fold calipers. Next, the wrestler completes a hydration test, to insure </em>

<em>against a dehydrated weight measurement, and the wrestler weighs in. The third step is the calculation of </em>

<em>the wrestler’s minimum wrestling weight based on 7% body fat for males and 12% for females. The </em>

<em>wrestler may not wrestle at a weight class below his minimum weight during the season. The wrestler is </em>

<em>also restricted from losing more then 1.5% body weight loss per week (official weigh-ins at certification, </em>

<em>matches, and tournaments are used for this calculation). A one-pound per month growth allowance is </em>

<em>provided to allow for the natural growth of this age group. The VHSL advises, and we have instituted, </em>

<em>daily weigh-ins before and after practice to monitor weight-loss and dehydration. </em>

<em>Additionally, the National Federation of State High School Associations has adopted several other rules to </em>

<em>guide coaches and wrestlers while managing their weight. Wrestlers are discouraged from wrestling at a </em>

<em>weight class more then one weight class above their certified weight. </em>

5 0
3 years ago
Other questions:
  • Are these congruent or not????
    15·2 answers
  • The formula V = IR shows the relationship between voltage, current, and resistance. Solve this formula for R.
    10·1 answer
  • What is the correct way to show a repeating decimal for the fraction ? 38/33
    7·1 answer
  • Parallel, Perpendicular<br>Or Neither<br><br>Y = 3x + 1<br>6x - 2y = 10​
    7·1 answer
  • The volume of a right circular cone that has a height of 13 m and a base with a diameter of 3.4 m. Round your answer to the near
    10·1 answer
  • Determine the value of s, the arc length (measured in inches) cut off in a circle with a radius of 3.4 inches by an angle with a
    11·1 answer
  • Bring me home with this home in 10 11 12 and 13
    10·2 answers
  • Mary purchased 20oz of peanut butter for $2.79. Calculate the price per ounce
    13·1 answer
  • Find the missing side lengths.<br><br> Can someone please help???
    10·1 answer
  • Which unit of measurement is the best unit to be used in measuring the weight of an adult?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!