<span>In </span>mathematics<span>, a </span>matrix<span> <span>(plural </span></span>matrices) is a
rectangular array of numbers, symbols, or expressions, arranged in rows and
columns.
Given that
E = [ 1 2]
<span>A = | 3
0|</span>
<span> | 2
-1 |</span>
<span>2EA = 2 [1 2] | 3 0|</span>
<span> | 2 -1 |</span>
<span>2EA = [ 14
-4]</span>
<span> </span>
Answer:
6x= 42
x= 7
Step-by-step explanation:
a) Area= length ×width
2100= 50 ×width
width= 2100 ÷50
width= 42 ft
Thus, the field is 42ft wide.
b) width of field
= x +3x +2x
= 6x
<em>Since</em><em> </em><em>we</em><em> </em><em>know</em><em> </em><em>that</em><em> </em><em>the</em><em> </em><em>field</em><em> </em><em>is</em><em> </em><em>42ft</em><em> </em><em>wide</em><em> </em><em>from</em><em> </em><em>(</em><em>a</em><em>)</em><em>,</em>
Equation: 6x= 42
x= 42 ÷6
x= 7
So the greatest common factor 48 and 120 is 24.
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