8/15 - (-2/3)
Its like adding them when its -(-#), so we turn it into 8/15 + 2/3
Now we make each fraction have the same denominator; 8/15 + 10/15
Now we solve by adding; 18/15 = 1 1/5
Answer:
See below
Step-by-step explanation:
Given that:
Where and . Substitute these values in the expression:
Substitute
Therefore, since both sides are the same after substituting theta = 30 degrees.
Hence, proved.
the missing side of the right triangle is 10.568
<h3>Pythagorean theorem formula</h3>
a² + b² = c²
<em>Which c is the hypotenuse part of triangle.</em>
<h3>Known that </h3>
a = 5.2
b = 9.2
c = ...?
<em>so</em><em> </em><em>the</em><em> </em><em>missing</em><em> </em><em>part</em><em> </em><em>is</em><em> </em><em>c</em><em>.</em>
<h3>Way to calculate</h3>
a² + b² = c²
5.2² + 9.2² = c²
111.8 = c²
c = √111.8
c = 10.568
#Moderators please don't be mean, dont delete my answers just to get approval from your senior or just to get the biggest moderation daily rank.
Answer:
There are 341 inches from the perimeter of a pentagon train made from 85 pentagons
Step-by-step explanation:
A pentagon is a polygon with five sides. A regular pentagon have all the five sides equal in length and also all the five interior angles equal.
The perimeter of a pentagon = 5l
Nof for a pentagon train attached to 1 pentagon by its sides;
The perimeter = (5 × 1 - (1-1))
Perimeter = 5
For pentagon train attached to two pentagon
Perimeter = ( 5×2 - (2-1))
Perimeter = (10 1)
Perimeter = 9
For pentagon train with n pentagon
Perimeter = ( 5× n -(n-1))
Perimeter = 5n - n+1
Perimeter = 4n + 1
∴ For pentagon train attached to 85 pentagon; where n=85
Perimeter = 4 n + 1
Perimeter = (4 × 85)+1
Perimeter = 340+1
Perimeter = 341 inches
There are 341 inches from the perimeter of a pentagon train made from 85 pentagons