Answer:
Maximize C =![9x + 7y](https://tex.z-dn.net/?f=9x%20%2B%207y)
![8x + 10y \leq 17](https://tex.z-dn.net/?f=8x%20%2B%2010y%20%5Cleq%2017)
![11x + 12y\leq 25](https://tex.z-dn.net/?f=11x%20%2B%2012y%5Cleq%2025)
and x ≥ 0, y ≥ 0
Plot the lines on graph
![8x + 10y \leq 17](https://tex.z-dn.net/?f=8x%20%2B%2010y%20%5Cleq%2017)
![11x + 12y\leq 25](https://tex.z-dn.net/?f=11x%20%2B%2012y%5Cleq%2025)
![x\geq 0](https://tex.z-dn.net/?f=x%5Cgeq%200)
![y\geq 0](https://tex.z-dn.net/?f=y%5Cgeq%200)
So, boundary points of feasible region are (0,1.7) , (2.125,0) and (0,0)
Substitute the points in Maximize C
At (0,1.7)
Maximize C =![9(0) + 7(1.7)](https://tex.z-dn.net/?f=9%280%29%20%2B%207%281.7%29)
Maximize C =![11.9](https://tex.z-dn.net/?f=11.9)
At (2.125,0)
Maximize C =![9(2.125) + 7(0)](https://tex.z-dn.net/?f=9%282.125%29%20%2B%207%280%29)
Maximize C =![19.125](https://tex.z-dn.net/?f=19.125)
At (0,0)
Maximize C =![9(0) + 7(0)](https://tex.z-dn.net/?f=9%280%29%20%2B%207%280%29)
Maximize C =![0](https://tex.z-dn.net/?f=0)
So, Maximum value is attained at (2.125,0)
So, the optimal value of x is 2.125
The optimal value of y is 0
The maximum value of the objective function is 19.125
Answer:
lateral area = 2320 m²
Step-by-step explanation:
The question wants us to calculate the lateral area of a square base pyramid. The square base pyramid has a side of 40 meters.The height is 21 meters.
Half of the square base is 40/2 = 20 meters . With the height it forms a right angle triangle. The hypotenuse side is the slant height of the pyramid.
Using Pythagoras's theorem
c² = a² + b²
c² = 20² + 21²
c² = 400 + 441
c² = 841
square root both sides
c = √841
c = 29 meters
The slant height of the pyramid is 29 meters.
The pyramid has four sided triangle. The lateral area is 4 multiply by the area of one triangle.
area of triangle = 1/2 × base × height
base = 40 meters
height = 29 meters
area = 1/2 × 40 × 29
area = 580
area of one triangle = 580 m²
Lateral area = 4(580)
lateral area = 2320 m²
-6n-20=-2n+4-12n
-6n-20=-14n+4
+6n +6n
-20=-8n+4
-4 -4
-24=-8n
/8 /8
n=-3
-
Answer:
758
Step-by-step explanation:
758 is the answer sheesh