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Mathematics

2 answers:

sukhopar [10]3 years ago

7 0

Answer:

Step-by-step explanation:

did this before so easy

miv72 [106K]3 years ago

6 0

Answer:

Step-by-step explanation:

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Which is the focus of a parabola with equation y^2=4x

Leviafan [203]

The focus is (1,0)

Hope this helps!

4 0

4 years ago

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A steel company is making flat rectangular frames as a part of a new product they are launching Each frame will be cut out of a

Basile [38]

Answer:

The problem has no real solution, because the area of inside of the frame is bigger than the total area of the frame.

Step-by-step explanation:

Any way here is the mathematical explanation/solve to this statement.

As show in the graphic, there is a representation of the situation stated in the problem. So in order to calculate the area we have the next equation as a function of x.

Area:

$A=b*h= (6+2x)(11+2x)\\\\A=28=66+12x+22x+4x^2}\\\\Simplifing\\\\4x^2+34x+38=0\\\\$

Solving the equation to find the roots (values of x):

$x=\frac{-b+- \sqrt{b^2-4ac} }{2a}=\frac{-34+-\sqrt{546} }{8} \\\\solving\\\\x=-7.2\\\\x=-1.3\\$

So mathematically there is no real answer, since x is a width must be positive number. And practically the outer area must be bigger than the inner area, and the inner area is given by 6 times 11, or 66 $cm^2$ .