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skelet666 [1.2K]
2 years ago
6

Point H is the incenter of triangle ABC. Find BD. a. 7.5 b. 8.5 c. 9.2 d. 9.7

Mathematics
2 answers:
Lilit [14]2 years ago
8 0


Triangle HDB is a right triangle with 60 & 30 degrees, then it is semi equilateral triangle where  HB= 11 & HD =5.5. Now apply Pythagoras  you will find
DB = 9.526 (there is a mistake in the a,b,c,d)

Mademuasel [1]2 years ago
6 0
Check the picture below

notice, using the 30-60-90 rule, since that triangle is a 30-60-90 triangle, we get 11 = 2x

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Two similar cones have volume of 4 m and 108 m respectively. If the large one has surface area 54 m, find the surface area of th
trasher [3.6K]

 

\displaystyle\bf\\Explanations:\\\\The~similarity~ratio~of~two~similar~cones=k\\\\k=is~the~ratio~between~2~corresponding~lengths\\\\k=\frac{R_1}{R_2}=\frac{h_1}{h_2}\\\\The~ratio~between~2~corresponding~areas~of~similar~cones=k^2\\\\\frac{Area~1}{Area~2}=k^2\\\\The~ratio~between~the~volumes~of~the~2~similar~cones=k^3\\\\\frac{Volume~1}{Volume~2}=k^3

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\displaystyle\bf\\Solving:\\\\Volume1=108~m^3\\\\Volume2=4m^3\\\\k^3=\frac{108}{4}\\\\k^3=27~~\Big|\sqrt{~}\\\\k=\sqrt[\b3]{27}\\\\k=3\\\\Area1=54~m^2\\\\\frac{Area~1}{Area~2}=k^2\\\\\frac{54}{Area~2}=3^2\\\\\frac{54}{Area~2}=9\\\\Area2=\frac{54}{9}\\\\\boxed{\bf Area2=6 m^2}

 

4 0
3 years ago
Which situation would best be represented by positive 6 ?
ohaa [14]

Answer: THE ANSWER IS D. Everything else is negative.

Step-by-step explanation:

If this helped please mark me Brainliest. thank you and have a nice day!

3 0
3 years ago
Read 2 more answers
All are equivalent except x<-2, x-2<4, 2x<-4, x-2<-4 ?
m_a_m_a [10]
To figure out which is not equivalent to the others,, we must solve each option provided. x < -2 is already solved,, so there is no need to do any work that option.
The first step for solving x - 2 < 4 is to move the constant to the right side and then change its sign.
x < 4 + 2
Now add the numbers together to get your final answer.
x < 6
This means that we have one option that equals x < -2 and one option that equals x < 6.
Let's now solve 2x < -4 to see what that one equals. In order to solve this,, we need to divide both sides of the inequality by 2.
x < -2
Now we can see that it looks like all of the expressions are equivalent except for x - 2 < 4. Before we can confirm this though,, let's solve for x - 2 < -4. The first step for solving this is to move the constant to the right side and change its sign.
x < -4 + 2
Now calculate the sum of these two numbers to get your final answer.
x < -2
This tells us that all of the options are equivalent except for x - 2 < 4,, or option B.
Let me know if you have any further questions.
:)
4 0
3 years ago
What is the factor of this problem? <br> ~plz help I cannot get this wrong !
ratelena [41]

Answer:

(x+4) (x+5)

Step-by-step explanation:

7 0
3 years ago
Please help :) Thank you
yKpoI14uk [10]

Answer:

the vertices are all labeled

a b c d and e

8 0
3 years ago
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