Answer:
3
Step-by-step explanation:
P is the in-center
⇒PA=PE=PD because they are in-radius of the in-circle
We know that, tangent segments drawn from a point outside the circle are always equal in length
⇒DK=EK=7.2
In right triangle PKE,
using Pythagoras' Theorem : ![PK^{2}=PE^{2}+KE^{2}](https://tex.z-dn.net/?f=PK%5E%7B2%7D%3DPE%5E%7B2%7D%2BKE%5E%7B2%7D)
⇒![PE^{2}=PK^{2}-KE^{2}](https://tex.z-dn.net/?f=PE%5E%7B2%7D%3DPK%5E%7B2%7D-KE%5E%7B2%7D)
⇒![PE=\sqrt{PK^{2}-KE^{2} }](https://tex.z-dn.net/?f=PE%3D%5Csqrt%7BPK%5E%7B2%7D-KE%5E%7B2%7D%20%7D)
⇒![PE^{2}=\sqrt{7.8^{2}-7.2^{2}} }](https://tex.z-dn.net/?f=PE%5E%7B2%7D%3D%5Csqrt%7B7.8%5E%7B2%7D-7.2%5E%7B2%7D%7D%20%7D)
⇒![PE=3](https://tex.z-dn.net/?f=PE%3D3)
Therefore, ![PA=3](https://tex.z-dn.net/?f=PA%3D3)
Answer: x= 5
Step-by-step explanation:
8x+32=1/5(25x−15)−4x
8x + 32 = <u>25x -15</u> - 4x <u><em>- 25x -15/ 5</em></u>
5
8x + 32 = 5x -3 - 4x
8x + 4x - 5x = -32 - 3
7x =-35
x = 35/7
x= 5
Answer:
a) 0.216
b) 0.784
c) 0.288
d) 0.352
e) 0.784
Step-by-step explanation:
The solution steps is attached as an image.
Answer:
1600
Step-by-step explanation:
multiply the volume value by 1000
Answer:
x=25/3
Step-by-step explanation:
I put it into photo math