What is the integral from 0 to-0.3 of 300x ?

The integral from 0 to-0.3 of 300x is 13.5

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integral from 0 to-0.3 of 300x

\int_{0}^{- 0.3} 300 x d x

13.5

Solution steps

\int_{0}^{- 0.3} 300 x d x

\int_{a}^{b} f (x) d x = - \int_{b}^{a} f (x) d x, a < b

= - \int_{- 0.3}^{0} 300 x d x

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= - 300 \cdot \int_{- 0.3}^{0} x d x

Apply the Power Rule

= - 300 [\frac{x ^{2}}{2}]_{- 0.3}^{0}

Simplify

= - 300 [0.5 x^{2}]_{- 0.3}^{0}

Compute the boundaries:

- 0.045

= - 300 (- 0.045)

Simplify

= 13.5

What is the integral from 0 to-0.3 of 300x ?
The integral from 0 to-0.3 of 300x is 13.5