Answer:
Question A: They should add product B because it has a 69% rate of approval. They can be 69% confident that the addition of product B will be successful.
Question B: 31% of people would prefer cookie A over cookie B
Step-by-step explanation:
Answer:
I just do a' as a sample. You calculate b' and c'
Step-by-step explanation:
Now, calculate b x c
![\left[\begin{array}{ccc}i&j&k\\2&3&1\\1&-1&-2\end{array}\right] =](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Di%26j%26k%5C%5C2%263%261%5C%5C1%26-1%26-2%5Cend%7Barray%7D%5Cright%5D%20%3D%3C-5%2C%205%2C-5%3E)
Answer:
They each walked the same amount if you plug 7 into each of their expressions
Step-by-step explanation:
Karen walked 3(7) - 4 or 17 miles
Kristen walked 2(7) + 3 or 17 miles
Let the number be x.
2*(x-4) < (x+5).
2x -8 < x +5
2x-x < 5 +8
x<13.
The number is less than 13.
That's it. Cheers.
