Approximate the area under the function between a and b using a left-hand sum with the given number of intervals. f(x)=x^2+2

a=0
b=6
6 intervals ​

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

What is the volume of this container?

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585