8 b³ / 20 b³
May be easier to handle if you write it like this:
( 8 / 20 ) x ( b³ / b³ )
In the first fraction, divide top and bottom by 4, and it becomes ( 2 / 5 ).
In the second fraction, divide top and bottom by b³, and it becomes ( 1 / 1 ).
Now the problem is ( 2 / 5 ) x ( 1 / 1 ). This is <em>2/5</em> .
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Easier way:
8 b³ / 20 b³
Divide the top by 4b³ and it becomes 2 .
Divide the bottom by 4b³ and it becomes 5 .
Now the fraction is <em>2/5</em> .
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The important thing to understand:
(8 of anything) / (20 of the same thing) = <em>2/5</em>
It doesn't matter if the things are cows, stones, leaves, or 'b³'s.
The terms point, line and plane, are the undefined terms in geometry. They are so basic that these terms are used to define other terms in geometry. You can describe a point to be indicating a location or position without any thickness. A line is a series of points that travel in one direction infinitely at both ends. A plane is a flat surface of area. The diagram of line ST intersecting plane M at point R is shown in the attached picture.
Answer:
sin∅ = 0.7311
Step-by-step explanation:
Pythagorean Theorem: a² + b² = c²
sin∅ = opposite/hypotenuse
Step 1: Find our hypotenuse
14² + 15² = c²
c = √421
Step 2: Find sin∅
sin∅ = 15/√421
sin∅ = 0.731055
Answer:
x=28
Step-by-step explanation:
the sum of the angles in a triangle is ALWAYS 180. Since we have the other 2 angles, we cam set up our equation: 79+73+x=180
79+73=152, so we can subtract 152 from 180 to get 28.