Answer:
9
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The final elevation from sea level of the first climber is the difference of the elevation of the peak and the number of feet he descended to meet his fellow climber,
e = 14,090 ft - 490 ft
e = 13,600 ft
Thus, the answer is letter C. 13,600 ft.
Answer:
A
![F(x)=-\frac{1}{1500}(x+20)(x+5)(x-15)](https://tex.z-dn.net/?f=F%28x%29%3D-%5Cfrac%7B1%7D%7B1500%7D%28x%2B20%29%28x%2B5%29%28x-15%29)
B
![=> F(x)=-\frac{x^3}{1500}-\frac{x^2}{150}+\frac{11x}{60}+1](https://tex.z-dn.net/?f=%3D%3E%20F%28x%29%3D-%5Cfrac%7Bx%5E3%7D%7B1500%7D-%5Cfrac%7Bx%5E2%7D%7B150%7D%2B%5Cfrac%7B11x%7D%7B60%7D%2B1)
Step-by-step explanation:
Function and its graphs
Part A
The graph shown in the image corresponds to a cubic function because of its classical infinite branches, three real roots and two extrema values
Part B
Knowing the value of the three roots x=-20, x=-5, and x=15 we can express the cubic function in factored form:
![F(x)=C(x+20)(x+5)(x-15)](https://tex.z-dn.net/?f=F%28x%29%3DC%28x%2B20%29%28x%2B5%29%28x-15%29)
The value of C will be determined by using any particular point from the graph. Let's use (0,1)
![1=C(0+20)(0+5)(0-15)](https://tex.z-dn.net/?f=1%3DC%280%2B20%29%280%2B5%29%280-15%29)
![C=-\frac{1}{1500}](https://tex.z-dn.net/?f=C%3D-%5Cfrac%7B1%7D%7B1500%7D)
Replacing, we find the factored form of the function
![F(x)=-\frac{1}{1500}(x+20)(x+5)(x-15)](https://tex.z-dn.net/?f=F%28x%29%3D-%5Cfrac%7B1%7D%7B1500%7D%28x%2B20%29%28x%2B5%29%28x-15%29)
The standard form demands to expand all the products and simplify
![F(x)=-\frac{1}{1500}(x^3+10x^2-275x-1500)](https://tex.z-dn.net/?f=F%28x%29%3D-%5Cfrac%7B1%7D%7B1500%7D%28x%5E3%2B10x%5E2-275x-1500%29)
![=> F(x)=-\frac{x^3}{1500}-\frac{x^2}{150}+\frac{11x}{60}+1](https://tex.z-dn.net/?f=%3D%3E%20F%28x%29%3D-%5Cfrac%7Bx%5E3%7D%7B1500%7D-%5Cfrac%7Bx%5E2%7D%7B150%7D%2B%5Cfrac%7B11x%7D%7B60%7D%2B1)
Answer:
10 cm
Step-by-step explanation:
Area= S×S= area
so, ?= 100cm².
10cm×10cm
=100cm².
therefore, the length of square is 10 cm.
for more information have a look on the photo.
if the answer help. mark me brainlist.
Answer:
the answer is 75%
Step-by-step explanation: