Hay 6 números entre -3 y 3
Computing the limit directly:
![\displaystyle\lim_{h\to0}\frac{f(2+h)-f(2)}h=\lim_{h\to0}\frac{((2+h)^2+(2+h)+1)-7}h\\\displaystyle=\lim_{h\to0}\frac{5h+h^2}h\\=\displaystyle\lim_{h\to0}(5+h)=\boxed{5}](https://tex.z-dn.net/?f=%5Cdisplaystyle%5Clim_%7Bh%5Cto0%7D%5Cfrac%7Bf%282%2Bh%29-f%282%29%7Dh%3D%5Clim_%7Bh%5Cto0%7D%5Cfrac%7B%28%282%2Bh%29%5E2%2B%282%2Bh%29%2B1%29-7%7Dh%5C%5C%5Cdisplaystyle%3D%5Clim_%7Bh%5Cto0%7D%5Cfrac%7B5h%2Bh%5E2%7Dh%5C%5C%3D%5Cdisplaystyle%5Clim_%7Bh%5Cto0%7D%285%2Bh%29%3D%5Cboxed%7B5%7D)
Alternatively, you can recognize the limit as being equivalent the derivative of <em>f(x)</em> at <em>x</em> = 2, in which case differentiating and plugging in 2 gives
<em>f'(x)</em> = 2<em>x</em> + 1 => <em>f'</em> (2) = 5
Answer:
4(t+25) = (t+50) - 4 (0.15t)
4t + 100 = t + 50 - 0.6t
4t + 100 = 50 + 0.4t
4t - 0.4t + 100 = 50 + 0.4t - 0.4t
3.6t + 100 = 50
3.6t + 100 - 100 = 50 - 100
3.6t = -50
3.6t / 3.6 = -50 / 3.6
t = - 13.9
Step-by-step explanation:
None they're parallel because they have te same slope. Work; get y by itself or graph! hope it helped ;)
Y=2x+3,when x is equal to 0,y is equal to 3, which means intercept is equal to 3