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
scoray [572]
3 years ago
8

HELP PLSSSSS Triangle ABC is an equilateral triangle. The angle bisectors and the perpendicular bisectors meet at D in such a wa

y that CD = 2DE.
The radius of the inscribed circle is____
units, and the radius of the circumscribed circle is___
units.

Mathematics
1 answer:
vazorg [7]3 years ago
6 0
CE = CD + DE = 2DE + DE = 3DE = 8.7

DE = 8.7/3 = 2.9
CD = 2DE = 5.8

For the inscribed circle, where center is point D. The radius is length DE.
This is because the circle will touch the 3 points where the bisectors intersect with sides of triangle.
radius = 2.9

For circumscribed circle, the center will also be point D. The radius is CD.
The circle will touch 3 points of triangle, A,B,C.
radius = 5.8
You might be interested in
What is the average rate of change for this function for the interval from x = 1
tangare [24]

6

have an amazing day <3

-------

8 0
3 years ago
Which THREE statements describe a statistic from a sample? A) 40% of Oak High School's freshmen take geometry. B) all the teache
prisoha [69]

Answer:

It's really easy its

A D and E

trust me i just took it

7 0
2 years ago
PLEASE HELPPP URGENT! , I'LL GIVE BRAINLEST FOR CORRECT ANSWER!​
LenKa [72]

Step-by-step explanation:

divide 36÷10 and so on

3 6/10 reduces to 3 2/5

8 0
3 years ago
Pls help! 50 POINTS!
nirvana33 [79]

Answer:

See below.

Step-by-step explanation:

1)

So we have the equation:

2x+3y=1470

To change into the slope-intercept form, we need to isolate the y-variable. Thus, subtract 2x from both sides:

(2x+3y)-2x=(1470)-2x

The left side cancels:

3y=1470-2x

Now, divide both sides by 3. The left side cancels:

(3y)/3=(-2x+1470)/3\\y=-\frac{2}{3} x+490

The slope-intercept form is:

y=mx+b

Where m is the slope and b is the y-intercept.

Thus, the slope is -2/3 and the y-intercept is 490.

2)

So, since we already know the y-intercept is 490, plot a point at (0,490).

The slope is too small to use. Thus, multiply the fraction by 100. It is now (-200/300). This means that we move <em>down</em> 200 for every 300 (recall that the slope means rise over run. Thus, we move down 200 for every 300 to the right). Thus, another possible point would be (0+300,490-200) or (300,290). Plot that. Then, connect them.

3)

To write in in function notation, simply substitute the y-variable for the function notation. Our independent variable here is x so we'll use that.

y=-\frac{2}{3}x+490\\ f(x)=-\frac{2}{3}x+490

This means that for every x sandwiches made, there is f(x) wraps made for the total sum to be $1,470.

For example, if 105 sandwiches were made, then f(105)=-2/3(105)+490=420 wraps were made for the total profit to be $1,470.

4)

Please refer to the attached graph.

5)

First, since the total profit has now increased, the graph above and to the right of the old graph. This is because Sal needs to sell more sandwiches and wraps. Likewise, because of this, the x- and y-intercepts will also be different. Nevertheless, if converted into the slope-intercept equation, the slope will remain the same.

5 0
3 years ago
Read 2 more answers
Find the area of the equilateral triangle
uranmaximum [27]

Answer:

Step-by-step explanation:

Suppose that the side length is s.  Imagine that one side is level.  Draw a vertical line through the top vertex perpendicular to the base (level side).  Label this vertical line "h."  Then h and s are related as follows:

                               √3          h

sin 60 degrees = ------- = --------

                                 2           s

                                                                   s√3

and so h = the height of the triangle =  -----------

                                                                       2

The area of this triangle is (1/2)(base)(height), which here is:

(1/2)(s/2)( s√3 /2), or

        (s^2)√3

A = ---------------

               8                                

8 0
3 years ago
Read 2 more answers
Other questions:
  • A single die is rolled one time. Find the probability of rolling an oddodd number or a number less than 55
    7·1 answer
  • What do you put as an answer if two numbers have no GCF? 1 or 0
    8·1 answer
  • Ten less the quotient of a number and 3 is 6
    7·1 answer
  • What is (-2x)+5+3x-4x+(-1)+(-x) simplified
    10·1 answer
  • An envelope from the post office is 7 inches wide and 8 inches long. What is the perimeter of the envelope?
    12·1 answer
  • Why are post hoc test preferred over several t-test
    8·1 answer
  • Oscar collects string. He has 95 yards rolled into a ball. How many pieces
    10·1 answer
  • Brainliest for correct answer, any inapplicable answer or absurd answer will be deleted and reported.
    6·1 answer
  • I really need help. Can you help me? please? Can you at least take a look at it? thanks.
    9·2 answers
  • What would i put in, in the blanks? please help, i don’t get this
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!