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
lesya692 [45]
3 years ago
11

An angle is created from points C, A, and B with vertex A. An arc is drawn from point A and intersects rays AC and AB. The inter

section of the arc and ray AC creates point D. The intersection of the arc and ray AB creates point E. An arc is drawn from point B. The compass is kept the same width and an additional arc is drawn from point E that intersects the arc drawn from point D. David is performing the following construction. Based on the markings that are present, what construction is he performing?
a.Bisecting an angle
b. Bisecting a line segment
c. Copying an angle
d. Copying a line segment
Mathematics
1 answer:
Minchanka [31]3 years ago
7 0

Answer:

Bisecting an angle ⇒ answer a

Step-by-step explanation:

* <em>Lets revise the steps of bisecting an angle</em>

- <em><u>How to construct a bisector of angle XYZ</u></em>

1. Open the compass to any width, and place its pin at the angle’s

   vertex Y and draw an arc cuts the two rays of the angle YX and YZ

   at two points M and N respectively

2. Open the compass to another width and place its pin at M and draw

    an arc between the two rays YX and YZ

3. Without changing the width of the compass place its pin at N and

   draw another arc intersects the arc from M at point Q

4. Join YQ which is the bisector of angle XYZ

* <em>Now lets compare these steps by the steps of the question</em>

∵ The vertex of the angle ABC is A represented by Y

∵ The rays of the angle AC and AB represented by YX and YZ

∵ Points D , E represented by points M , N

∴ The construction is " Bisecting an angle "

You might be interested in
find the x-intercepts and the coordinates of the vertex for the parabola Y equals negative X squared plus 8X -12. If there’s mor
Oksanka [162]

Answer:

x = 2, and 6

x = 2 , 6

Step-by-step explanation:

The quadratic function to analyze is: y = -x^2+8x-12

In order to find where the corresponding parabola intercepts the x axis, we set it equal to zero (y = 0):

y = -x^2+8x-12\\0 = -x^2+8x-12\\x^2-8x+12=0

This equation is easy to solve by factoring. We look for a air of integer numbers whose product equals the constant term "12", and whose combinig renders the coefficient of the middle term of the trinomial "-8".

The two such numbers are "-2" and "-6". We use them to split the middle term, and then solve by factoring by grouping:

x^2-8x+12=0\\x^2-2x-6x+12=0\\(x^2-2x)+(-6x+12)=0\\x(x-2)-6(x-2)=0\\(x-2)(x-6)=0

For the product of two factors to render zero, we need either one to be a zero.This means that (x-2)=0 (that is x = 2), or (x-6)=0 (that is x = 6).

So, there are two x-intercepts: x= 2, and 6

3 0
3 years ago
Gravity on the Moon is much weaker than on Earth. The expression below can be used to approximate the time in seconds it takes f
melisa1 [442]
It will take an object dropped from a height of 50 meters √50/0.82 = 8.62 seconds to land on the moon.
7 0
3 years ago
The compressive strength of concrete is normally distributed with mu = 2500 psi and sigma = 50 psi. A random sample of n = 8 spe
ipn [44]

Answer:

The standard error of the sample mean is _17.677_ psi.

Step-by-step explanation:

<u>Explanation</u>:-

A random sample of n = 8 specimens is collected.

Given sample size is n = 8

Given mean of the population 'μ' = 2500 psi

standard deviation 'σ' = 50 psi

Let x⁻ is the mean of the observed sample

Standard error of the sample mean = \frac{S.D}{\sqrt{n} }      ...(i)

Given Population of standard error (S.D) 'σ' = 50 psi

Now substitute all values in (i)

S.E = \frac{50}{\sqrt{8} } =17.677

<u>Conclusion</u>:-

The standard error of the sample mean is _17.677psi.

7 0
3 years ago
Please help <br><br><br> marking brainlist
slamgirl [31]
B. If they are congruent
7 0
2 years ago
please help I have no idea what this is.. or what to do.. thank you so much!!​ Nvm I got it its 32 feet
Anton [14]

Answer: 32 feet

Step-by-step explanation:

well if each side is 8ft you would then add up all the sides, and it would equal 32ft

8 0
2 years ago
Other questions:
  • Which function is undefined for x = 0? y=3√x-2 y=√x-2 y=3√x+2 y=√x=2
    10·1 answer
  • A pattern follows the rule "Starting with one, every consecutive line has a number one more than twice the previous line".
    14·1 answer
  • PLLZZ HELP ANSWER THE QUESTION
    5·1 answer
  • Point C is located at (2,8). If it is reflected across the x axis, where will C be located?
    9·2 answers
  • What are the solutions to the following system of equations? y = x2 + 3x − 7 3x − y = −2 (2 points) (3, 11) and (−3, −7) (11, 3)
    15·2 answers
  • Find a polynomial equation that has zeros at x = −2, x = 0, x = 3 and x = 5
    8·1 answer
  • Round to ten thousands 25497 54088
    6·1 answer
  • $250 at 4 percent for 1 year
    14·1 answer
  • What is 3 7/5 in radical form
    13·1 answer
  • (x-8)x(-7x-17) - simplify
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!