Answer:
- 3 months
- $660,000 each, or $1,320,000 total
Step-by-step explanation:
(a) The revenue from sales will be equal when ...
-x^2 +11x +42 = -5x +81
0 = x^2 -16x +39
0 = (x -13)(x -3)
According to this model, sales will be even after 3 months and after 13 months. The first time it occurs is after 3 months.
__
(b) Sales of each media at that point in time will be ...
y = -5x +81 = -5(3) +81 = 66 . . . . tens of thousands of dollars
$660,000 will be earned from sales of single-tickets and from season pass sales, for a total of $1,320,000.
4x + 2y = -16
2x + y = - 8 (divide both side by 2)
so
y = -2x - 8
answer
y = -2x - 8
Answer:
x = 3√3
y = 6
Step-by-step explanation:
The geometric mean relations between segments intersecting the long hypotenuse and its parts can be used to find the values of interest.
<h3>Altitude</h3>
x = √(9·3) = 3√3
<h3>Short side</h3>
y = √((9+3)·3) = 6
__
<em>Additional comment</em>
These right triangles are all similar, so corresponding sides are proportional. When the proportions are solved for a missing side, a geometric mean relation results. (The geometric mean of 'a' and 'b' is √(ab).)
Identify the segments above the horizontal line as w, x, y. (x and y are already identified in this figure.)
The ratio of short side to long side is ...
x/9 = 3/x ⇒ x² = 9·3 ⇒ x = √(9·3)
The ratio of short side to hypotenuse is ...
y/(9+3) = 3/y ⇒ y² = (9+3)·3 ⇒ y = √((9+3)·3)
Likewise, the ratio of long side to hypotenuse is ...
w/(9+3) = 9/w ⇒ w² = (9+3)·9 w = √((9+3)·9) = 6√3
So total sum incorrect sum will be 84.50×16= 1352
so this contains 48 , right !!
so subtract 48 from sum and add 84
it will give 1352-48+84 = 1388
so new mean will be 1388/16= 86.75
thus the answer is 86.75 !!