5/11, 2/3, 7/8. 5/11 is a little less than half, so that can be ruled out. 2/3 is equivalent to 4/6 which is less than 7/8.<span />
X is the amount of everything. (total)
x = 20 + j
Answer:
32
Step-by-step explanation:
Answer:
70 is answer
Step-by-step explanation:
Given that a function in x is
![f(x) = 5x^2](https://tex.z-dn.net/?f=f%28x%29%20%3D%205x%5E2)
we have to find f'(7)
we know by derivative rule derivative of a function is
![f'(x) = lim_({h-->0}) \frac{f(x+h)-f(x)}{h}](https://tex.z-dn.net/?f=f%27%28x%29%20%3D%20lim_%28%7Bh--%3E0%7D%29%20%5Cfrac%7Bf%28x%2Bh%29-f%28x%29%7D%7Bh%7D)
For finding out at 7 we replace x by 7
![f'(7) = lim_({h-->0}) \frac{f(7+h)-f(7)}{h}](https://tex.z-dn.net/?f=f%27%287%29%20%3D%20lim_%28%7Bh--%3E0%7D%29%20%5Cfrac%7Bf%287%2Bh%29-f%287%29%7D%7Bh%7D)
=![lim\frac{5(7+h)^2-5*7^2}{h} \\= lim \frac{10h*7+h^2}{h} \\= 70+h = 70](https://tex.z-dn.net/?f=lim%5Cfrac%7B5%287%2Bh%29%5E2-5%2A7%5E2%7D%7Bh%7D%20%5C%5C%3D%20lim%20%5Cfrac%7B10h%2A7%2Bh%5E2%7D%7Bh%7D%20%5C%5C%3D%2070%2Bh%20%3D%2070)
So f'(7) = 70
answer is 70