2 years ago

What is Pythagoras' Thereom?

Mathematics

2 answers:

Margarita [4]2 years ago

8 0

A^2 + B^2 = C^2, if C is the hypotenuse of a right angled triangle and A and B are the shorter sides.

mash [69]2 years ago

4 0

The Pythagorean Theorem states that $a^2+b^2=c^2$ , where a and b are the legs of a right triangle and c is the hypotenuse of the same triangle.

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Solve x2 - 8x - 9 = 0. Rewrite the equation so that it is of the form x2 + bx = c.

barxatty [35]

Answer:

x=9,-1 and $x^2+(-8)x=9$

Explanation:

we have been given with the quadratic equation $x^2-8x-9$

we compare the given quadratic equation with general quadratic equation

general quadratic is $ax^2+bx+c=0$

from given quadratic equation a=1,b= -8,c= -9

substituting these values in the formula for discriminant $D=b^{2}-4ac$

$D=(-8)^2-4(1)(-9)=100$

Now, to find the value of x

Formula is $x=\frac{-b\pm\sqrt{D}}{2a}$

Now, substituting the values we will get

$x=\frac{-(-8)\pm\sqrt{100}} {2}= \frac{8\pm10}{2}=9,-1$

And rewritting the given equation by shifting 9 to right hand side of the given equation and taking minus inside the bracket so as to convert it in the form of

$x^2+bx=c$

4 0

2 years ago

Read 2 more answers

What is 3/4 divided by 1/4

Over [174]

Answer:

Step-by-step explanation:

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2 years ago

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1- 4/5 divided by 2/3

Softa [21]

I hope this helps you

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3 years ago

13. If Kelloggs wants to double all the dimensions of its Frosted Flakes box to create a "Costco" size box, how

ohaa [14]

2 times as much.

(In the cereal aisle at Costco they always have 2 boxes a pack)

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2 years ago

What is the solution of the following system use the elimination method

amm1812

so, x =

$- \frac{3}{2}$

and y =

$4$

Hence, the answer is the first one.

6 0

2 years ago