Speed = distance divided by time. Plug in what you know.
Speed = 51.2 km / 4 hrs. ****** Simplify *******************
Speed = 12.8 km/hr
Answer:
Step-by-step explanation:
Calculus....finally something FUN to answer!
This is integration, but here you have the area under the curve, you just don't have the upper bound. Setting that problem up looks like this:
and using the First Fundamental Theorem of Calculus, that will integrate to look like this:
from 1 to b and applying the FTC:
Multiplying everything by 2 to get rid of the denominators gives you:
![56=7b^2-7\\\\56=7(b^2-1)\\8=b^2-1\\9=b^2\\b=3](https://tex.z-dn.net/?f=56%3D7b%5E2-7%5C%5C%5C%5C56%3D7%28b%5E2-1%29%5C%5C8%3Db%5E2-1%5C%5C9%3Db%5E2%5C%5Cb%3D3)
Answer:
4
Step-by-step explanation:
Divide the coefficient of the x term by 2, then square the result. This number will be added to both sides of the equation. For the quadratic equation x2+4x=96, the coefficient of the x term is 4.
Answer:
5
Step-by-step explanation:
You just multiply the indices by the power so 1/6 x 6 = 1 and 5 to the power of 1 is just 5.