Solve using elimination 3x-5y= -19 6x-4y= -14
1 answer:
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For x=5 the function will be zero
Further explanation:
In order to find the value on which a particular function will be zero, the function is put equal to zero and the equation is solved for x.
Given function is:
Putting the function equal to zero
For x=5 the function will be zero i.e.
f(x)=0
We can verify:
Keywords: Functions, solution of functions
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So hmm notice the picture below
what you really have is, 2 pentagons and 5 rectangles, stacked up to each other at the edges
so.. .the surface area of the figure, will be, the area of those 5 rectangles added together plus the area of those 2 pentagons
now... notice, each rectangle is a 12x8
now.. to get the pentagons area, keep in mind, the area of a regular polygon is 1/2 * apothem * perimeter
you have the apothem, is given, one side is 12 units long, the perimeter is all sides added together, thus 12+12+12+12+12
so.. get the area of each of the rectangles and those pentagons, sum them up, and that's the surface area of the figure
what you really have is, 2 pentagons and 5 rectangles, stacked up to each other at the edges
so.. .the surface area of the figure, will be, the area of those 5 rectangles added together plus the area of those 2 pentagons
now... notice, each rectangle is a 12x8
now.. to get the pentagons area, keep in mind, the area of a regular polygon is 1/2 * apothem * perimeter
you have the apothem, is given, one side is 12 units long, the perimeter is all sides added together, thus 12+12+12+12+12
so.. get the area of each of the rectangles and those pentagons, sum them up, and that's the surface area of the figure