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Firlakuza [10]
3 years ago
12

Art wants to cover an isosceles triangle with a height of 9 centimeters and a base of 7 centimeters in fabric. How much fabric d

oes he need?
Mathematics
1 answer:
s2008m [1.1K]3 years ago
6 0

Answer:

31.5 cm²

Step-by-step explanation:

Calculate area of a triangle with this formula:

Area = \frac{1}{2} base * height

Substitute in known values

Area = \frac{1}{2} 7 * 9

Multiply 7 by 1/2

Area = 3.5 * 9

Multiply

Area = 31.5 cm²

Hope this helps :)

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Answer:

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Step-by-step explanation:

Using the formula

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r=C

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2·π≈5.99696ft

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3 years ago
A square table top has an area of 36 cm sq . What is each side?
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3 years ago
P(x) = x3 - 2x2 + 2x<br> What are the real and complex zeros of the equation
vesna_86 [32]

Given:

The polynomial is

p(x)=x^3-2x^2+2x

To find:

The real and complex zeros of the equation.

Solution:

We have,

p(x)=x^3-2x^2+2x

For zeros, p(x)=0.

x^3-2x^2+2x=0

x(x^2-2x+2)=0

x(x^2-2x+2)=0

x=0\text{ and }x^2-2x+2=0

The real value of x is 0. The equation x^2-2x+2=0 will give complex roots. Here, a=1, b=-2 and c=2.

Using quadratic formula, we get

x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}

x=\dfrac{-(-2)\pm \sqrt{(-2)^2-4(1)(2)}}{2(1)}

x=\dfrac{2\pm \sqrt{4-8}}{2}

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