I believe it’s 5cm because 10 divide by 2 is 5
Instead of drawing the line that you did, draw it horizontally from the corner, creating a triangle and a rectangle.
Shape 1: rectangle, L•W, 15m•6m, 90m^2
Shape 2: triangle, 1/2(L•W), 1/2(10m•4m), 20m^2
Total Area: 100m^2
I think since the boy runs 9/10 in 5 minutes you are supposed to times that by 12 because if you count by fives the number 60 stops at 12 so times that then you will get 108/10 then simplify it then it will be 10 8/10
<h2>
Answer:</h2>
![y=3sec\left(\frac{1}{2}x\right)](https://tex.z-dn.net/?f=y%3D3sec%5Cleft%28%5Cfrac%7B1%7D%7B2%7Dx%5Cright%29)
<h2>
Step-by-step explanation:</h2>
The graphs of
can be obtained from the graph of the cosine function using the reciprocal identity, so:
![sec(x)=\frac{1}{cos(x)}](https://tex.z-dn.net/?f=sec%28x%29%3D%5Cfrac%7B1%7D%7Bcos%28x%29%7D)
But in this problem, the graph stands for the function:
![y=3sec\left(\frac{1}{2}x\right)](https://tex.z-dn.net/?f=y%3D3sec%5Cleft%28%5Cfrac%7B1%7D%7B2%7Dx%5Cright%29)
Because the period is now 4π as indicated and for
in the figure and this can be proven as follows:
![Period=\frac{2\pi}{\frac{1}{2}}=4\pi](https://tex.z-dn.net/?f=Period%3D%5Cfrac%7B2%5Cpi%7D%7B%5Cfrac%7B1%7D%7B2%7D%7D%3D4%5Cpi)
Also,
as indicated in the figure and this can be proven as:
![y=3sec\left(\frac{1}{2}x\right) \\ \\ y=\frac{3}{cos(0.5x)} \\ \\ y=\frac{3}{cos(0.5(0))} \\ \\ y=\frac{3}{1}=3](https://tex.z-dn.net/?f=y%3D3sec%5Cleft%28%5Cfrac%7B1%7D%7B2%7Dx%5Cright%29%20%5C%5C%20%5C%5C%20y%3D%5Cfrac%7B3%7D%7Bcos%280.5x%29%7D%20%5C%5C%20%5C%5C%20y%3D%5Cfrac%7B3%7D%7Bcos%280.5%280%29%29%7D%20%5C%5C%20%5C%5C%20y%3D%5Cfrac%7B3%7D%7B1%7D%3D3)