Answer:

Step-by-step explanation:
Assuming this is a linear equation in the form of
, we can first solve for the slope using
, for these points, the slope would be
. Now we plug in the points to get the equation:
plugging in (7,5), we get
×
+ 
and solving for b, we get b = 
therefore, the equation of the line passing through (7,5) and (1,2) is
.
hope this helps!
Answer: Total amount is 108 because 9 times 4 is 36. So 36+36+36=108
Answer:
\mu = 14.5\\
\sigma = 5.071\\
k = 1.084
Step-by-step explanation:
given that a statistician uses Chebyshev's Theorem to estimate that at least 15 % of a population lies between the values 9 and 20.
i.e. his findings with respect to probability are

Recall Chebyshev's inequality that

Comparing with the Ii equation which is appropriate here we find that

Next what we find is

Thus from the given information we find that

Answer:6
Step-by-step explanation:
Answer:
X=3,1/4
Step-by-step explanation:
4x²-(12+1)x+3=0
or,4x²-12x-x+3=0
or,4x(x-3)-1(x-3)=0
or,(4x-1)(x-3)=0
Either,4x-1=0➡️ 4x=1
X=1/4
OR,x-3=0➡️ X=3