Answer:
3
x
2
+
2
x
−
2
Step-by-step explanation:
Answer:
11.75
Step-by-step explanation:
From the question above 8 is the difference of d and 3.75
We are required to find the value of d
d-3.75= 8
d= 8 + 3.75
d= 11.75
Hence the value of d is 11.75
I’m guessing that the 5th percentile is app. 2 standard deviations which I think is right. In that case the 5th percentile will tend to wait for 212+2(24.7)= 261.4 (days?). Hope that helps!
we are given to find
we know that
where
i is number of rows
j is number of column
Here , we get
i=2
and j=3
so,
means second row and third column
we can look at matrix and find element
we can see that
that element is -21
so,
...........Answer
If x+2 is a factor of x^3+6x^2+kx+10, then if we replace x by -2 in the polynomial x^3-6x^2+kx+10, we must get zero:
x=-2→(-2)^3-6(-2)^2+k(-2)+10=0→
-8-6(4)-2k+10=0→
-8-24-2k+10=0
-2k-22=0
Solving for k. Adding 22 both sides of the equation:
-2k-22+22=0+22
-2k=22
Dividing both sides of the equation by -2:
-2k/(-2)=22/(-2)
k=-11
Answer: k = - 11
