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2 years ago

Solve the equation x2-16x+54=0

Mathematics

2 answers:

kari74 [83]2 years ago

7 0

Answer:

x1 = 8+√10, x2 = 8 -√10

Step-by-step explanation:

x² - 16x + 54 = 0

$x = \frac{-b +/-\sqrt{b^{2} -4ac} }{2a} \\x = \frac{-(-16)+/-\sqrt{(-16)^{2} -4*1*54} }{2*1} \\\\\\x = \frac{16+/-\sqrt{(40)} }{2*1} = 8+/-\sqrt{10} \\\\x_{1} = 8+\sqrt{10}\\\\x_{2} =8-\sqrt{10}$

Vladimir [108]2 years ago

3 0

Answer:

x1 = 8+√10, x2 = 8 -√10

Step-by-step explanation:

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3 years ago

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Answer:

$C(s) = 6s^2 + \dfrac{1500}{s}\\\text{where s is the side of base.}$

Step-by-step explanation:

We are given the following in the question:

A storage shed is to be built in the shape of a (closed) box with a square base.

Volume = 150 cubic feet

Let s be the edge of square base and h be the height.

Volume of cuboid =

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where l is the length, b is the base and h is the height.

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Cost of material for the roof = $2

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is the required cost function.

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