Answer:
I think it's 1716six but I'm not sure though.
Answer:

Step-by-step explanation:
We can add the two equations to eliminate
and solve for
.



Now, we can find for
by using substitution:
(given)


Hope this helps :)
Answer:
Option B). 10 cm
Step-by-step explanation:
Distance between center and the focus of an ellipse is given by the formula,
c² = a² - b²
where, a = length of the major axis
b = length of the minor axis
and c = distance between focus and center
If c = 6 cm, b = 8 cm,
6² = a² - 8²
a² = 6² + 8²
a² = 36 + 64
a² = 100
a = 10 cm
Therefore, length of the major axis is 10 cm.
Option (B) is the answer.
If Matrix A is equal to [2 1.5 1], so that AB represents the total advertising cost for all three countries, matrix B is
[40000 50000 30000]
The product of the two matrices or AB will yield the total advertising cost.<span />
It would be the last answer, you can't simplify