How would you solve a problem in time travel if you you departing at 1:10 PM EST and arriving at 8:29 PM PST.
1 answer:
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Answer:
The diameter is 6.92 unit.
Step-by-step explanation:
Given : An equilateral triangle with sides of length 6 is inscribed in a circle.
To find : What is the diameter of the Circle?
Solution :
First we picture the situation.
Refer the attached figure below.
We that the angles of equilateral triangle is 60 degrees.
Then, we divide the triangle into two parts to solve the radius.
As,
∠ACD is 60°
In triangle OCD,
Diameter = 2r=2(3.4641)=6.92 unit.
Therefore, The diameter is 6.92 unit.
Answer:
The correct option is d
Step-by-step explanation:
From the question we are told that
The concentration of HF is [HF] = 0.6 M
The concentration of NaF is
The Ka of HF is
Generally HF(Hydrogen fluoride ) is ionized as follows
Generally NaF(Sodium fluoride ) is ionized as follows
Generally the from Henderson-Hasselbalch equation the pH of the buffer is mathematically represented as
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