Answer:
30.6
Step-by-step explanation:
The closest shape to a tree trunk is a cylinder.
Area of a cylinder: 1/3πr^2h
1/3πr^2h
1/3π(1.5)^2(13)
1/3π(2.25)(13)
1/3π(29.25)
30.6
something noteworthy is that the independent and squared variable in this case will be the "x", namely the graph of that quadratic is a vertical parabola.
![\bf f(x) = (x+2)(x-4)\implies 0=(x+2)(x-4)\implies x = \begin{cases} -2\\ 4 \end{cases} \\\\\\ \boxed{-2}\rule[0.35em]{7em}{0.25pt}0\rule[0.35em]{3em}{0.25pt}\stackrel{\downarrow }{1}\rule[0.35em]{10em}{0.25pt}\boxed{4}](https://tex.z-dn.net/?f=%5Cbf%20f%28x%29%20%3D%20%28x%2B2%29%28x-4%29%5Cimplies%200%3D%28x%2B2%29%28x-4%29%5Cimplies%20x%20%3D%20%5Cbegin%7Bcases%7D%20-2%5C%5C%204%20%5Cend%7Bcases%7D%20%5C%5C%5C%5C%5C%5C%20%5Cboxed%7B-2%7D%5Crule%5B0.35em%5D%7B7em%7D%7B0.25pt%7D0%5Crule%5B0.35em%5D%7B3em%7D%7B0.25pt%7D%5Cstackrel%7B%5Cdownarrow%20%7D%7B1%7D%5Crule%5B0.35em%5D%7B10em%7D%7B0.25pt%7D%5Cboxed%7B4%7D)
so the parabola has solutions at x = -2 and x = 4, and its vertex will be half-way between those two guys, namely at x = 1.
since this is a vertical parabola, its axis of symmetry, the line that splits its into twin sides, will be a vertical line, and it'll be the x-coordinate of the vertex, since the vertex hasa a coordinate of x = 1, then the axis of symmetry is the vertical line of x = 1.
Answer:
A
Step-by-step explanation:
6/9=18/27
I just divided 27 by 3 which is 9
(D) 80°, 140°, and 70° group of segments cannot form a triangle.
<h3>
What is a triangle?</h3>
- A triangle is a three-edged polygon with three vertices.
- It is a fundamental shape in geometry.
- Triangle ABC represents a triangle with vertices A, B, and C.
- In Euclidean geometry, any three non-collinear points define a unique triangle and, by extension, a unique plane.
- In other words, the triangle is contained in just one plane, and every triangle is contained in some plane.
- There is just one plane and all triangles are enclosed in it if the entire geometry is merely the Euclidean plane; but, in higher-dimensional Euclidean spaces, this is no longer true.
To find which group of segments cannot form a triangle:
- 80°, 140°, and 70° cannot form a triangle because the sum of the three angles is 290°, whereas the sum of the angles in a triangle is 180°.
Therefore, (D) 80°, 140°, and 70° group of segments cannot form a triangle.
Know more about triangles here:
brainly.com/question/17335144
#SPJ4
Answer:
$78.75
Step-by-step explanation:
Principle: $750
Interest rate: 3.5%
Time: 3 years
750 x 3 x 3.5 % = $78.75
