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Mathematics

1 answer:

kvasek [131]3 years ago

7 0

Answer:

V =1236.4 ft^3

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h

The radius is d/2 =15/2 = 7.5

V = 3.14 (7.5)^2 * 7

V = 1236.375

Rounding to the nearest tenth

V =1236.4 ft^3

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$\begin{array}{rcll}y & = & x^{2} - 10x + 27 & \\y - 27 & = & x^{2} - 10x & \text{Subtracted 27 from each side}\\y - 27&= & x^{2} - 10x + 25 - 25 & \text{Added and subtracted (b/2)}^{2}\\y - 27&= & (x - 5)^{2} - 25 & \text{Wrote the first three terms as the square of a binomial}\\y& = & \mathbf{(x - 5)^{2} + 2} & \text{Added 27 to each side}\\\end{array}\\\text{The vertex form of the parabola is $\large \boxed{\mathbf{y = (x - 5)^{2} + 2 }}$}$ The figure below shows that your parabola has its vertex at (5,2).