Atree trunk has a height of 30 feet and a radius of 2.5 what is the volume of the tree trunk

L.) 589

Step-by-step explanation:

We can automatically asume that a Tree trunk is a cylinder. so the formula to find the volume of a cylinder is

So we have to substitue the values.

3.14 x (2.5 squared) x 30 = V

rewrite

3.14 x 6.25 x 30 = V

19.625 x 30 = 588.75

Your exact volume is 588.75 But we can round it. so therfore your answer is L.) 589

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The locations of A' and B' are A' (0, 6) and B' (6, 0), lines f and f' are

parallel ⇒ last answer

Step-by-step explanation:

* Lets explain how to solve the problem

- A dilation is a transformation that changes the size of a line segment.  

- It can become larger or smaller

- The scale factor, measures how much larger or smaller  

 the image will be

- If the scale factor greater than 1, then the image will be larger

- If the scale factor between 0 and 1, then the image will be smaller

- The image of any point (x , y) by dilation about the origin by scale

 factor k is (kx , ky)

- The line NOT passing through the center of the dilation is parallel to

  its image

* Lets solve the problem

- Line f has two points A (0 , 2) and B (2 , 0)

- Line f dilate by scale factor 3 with center of dilation at the origin

- f' is the image of line f after dilation has points A' and B' whose the

  images of A and B after dilation

∵ The scale factor is 3

∵ A = (0 , 2) and B = (2 , 0)

∴ A' = (0 × 3 , 2 × 3) = (0 , 6)

∴ B' = (2 × 3 , 0 × 3) = (6 , 0)

∴ Points A' and B' located at (0 , 6) and (6 , 0)

∵ Line f NOT passes through the origin point (center of dilation)

∴ Line f is parallel to its image f'

∴ Lines f and f' are parallel

* The locations of A' and B' are A' (0, 6) and B' (6, 0), lines f and f'

  are parallel