Answer:
X+y=30
X=30-y
Z=yx
Z=y(30-y)
D/dy
z=30–2y
At max 30–2y=0
2y=30 Y=15
Therefore x=15
Step-by-step explanation:
87
66 -----
| 5784
-528
--------
4504
- 462
-------------
42
87 42/66
Answer:
6.32
Step-by-step explanation:
divide 18.96 by 3 and the outcome is 6.32
A function is its own inverse if it is symmetrical about the line y=x. This is the case for functions t, y, w. Function d(x) = 1/x^2 is symmetrical about the line x=0, but is not symmetrical about the line y=x.
The appropriate choices are ...
a. t(p) = p
b. y(j) = -1/j
c. w(y) = -2/y
<em>Answer:</em>
24.64
<em>Method:</em>
You get 10% of the shirt cost, and it on to the 22.40