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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
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In Exercises 26-28, write an equation. Then solve.
saul85 [17]

Answer:

The temperature outside is  75.6°F

Step-by-step explanation:

We are given the following in the question:

The temperature of dry ice = - 109.3°F

Let x be the temperature outside in Fahrenheit.

It is given that the temperature of dry ice  is 184.9°F less than  the outside temperature.

Thus, we can write the equation:

x - 184.9 = -109.3

Solving, the above equation, we get:

x - 184.9 = -109.3\\x = -109.3 + 184.9\\x = 75.6

Thus, the temperature outside is  75.6°F

7 0
3 years ago
Hi can some please help?
Oduvanchick [21]
So I'm assuming that you're taking Calculus.
The first thing you want to do is take the integral of f(x)...
Use the power rule to get:
4X^2-13X+3.
Now solve for X when f(x)=0. This is because when the slope is 0, it is either a minimum or a maximum(I'm assuming you know this)
Now you get X=0.25 and X=3. Since we are working in the interval of (1,4), we can ignore 0.25
Thus our potential X values for max and min are X=1,X=4,X=3(You don't want to forget the ends of the bounds!)
Plugging these value in for f(x), we get
f(1)=2.833
f(3)=-8.5
f(4)=1.667
Thus X=1 is the max and X=3 is the min.
So max:(1,2.833)
min:(3,-8.5)

Hope this helps!
3 0
3 years ago
600+15y=750.<br> solve for y<br> can I as well have the way you solved for y?
Pie
1.)subtract 600 from 750 in order to simplify
2.)divide by 15 on both sides to get y alone. Doing this cancels the 15 on the y and makes the right side equal 10
3.)y=10
4 0
3 years ago
Read 2 more answers
A figure has an area of 64 unit square which describes the area of the figure after a dilation with a scale factor of 3/2
eduard

Answer:

It's 144 units^2

Step-by-step explanation:

You have to take your 3/2 and square it, turning it to 9/4 and multiply that by 64, which gives you 144.

7 0
2 years ago
Can u guys help wit a little bit more questions what is 9.04-6.98 ​
Goryan [66]

Answer:

9.04-6.98=2.06

4 0
2 years ago
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