Answer:
15
Step-by-step explanation:
5x - 6 = 4x + 9
+6 + 6
5x = 4x + 15
-4x - 4x
x = 15
Answer:
see the explanation
Step-by-step explanation:
The picture of the question in the attached figure
we know that
1) 
----> is given
2) 
----> by central angle
3) ![m\angle RWT=\frac{1}{2}[arc\ ST]](https://tex.z-dn.net/?f=m%5Cangle%20RWT%3D%5Cfrac%7B1%7D%7B2%7D%5Barc%5C%20ST%5D)
----> by inscribed angle
![m\angle RWT=\frac{1}{2}[30^o]=15^o](https://tex.z-dn.net/?f=m%5Cangle%20RWT%3D%5Cfrac%7B1%7D%7B2%7D%5B30%5Eo%5D%3D15%5Eo)
4) 
----> Triangle RTW is an isosceles triangle (RT=RW=radius of circle R)
therefore
Answer:
22
Step-by-step explanation:
ST is y and SU is 2y-4.
Note that SU = ST + TU = y + 18
So we have 2y - 4 = y + 18
2y - 4 = y + 18
2y = y + 22
y = 22
So ST is 22.
:)
S=50x-x^2
dS/dx=50-2x
d2S/dx2=-2
Since acceleration is a constant negative, when velocity equals zero, it is at the absolute maximum point for S(x)...
dS/dx=0 only when 50-2x=0, 2x=50, x=25
So the price that will maximize income is $25.00 a seat.
And that maximum income is:
S(25)=50x-x^2
S(25)=$625.00
Answer:
Set 1 is not a function
Step-by-step explanation:
You can have the same y value multiple times in a function, but you cannot have repeating x values. In set 1, there are two x values that are the same (3,2) and (3,1), so it is not a function.
