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2 years ago

12

Can someone plz explain Pythagoras theorem to me

2 answers:

Ludmilka [50]2 years ago

7 0

Hi! :)

I assume you meant to say the Pythagorean Theorem. The Pythagorean Theorem is $a^{2} + b^{2} = c^{2}$ and it is used to find the length of a side of a triangle.

Hope this helps!

liubo4ka [24]2 years ago

5 0

In EVERY right-angled triangle the square on the hypotenuse = the sum of the squares on the other 2 sides. The hypotenuse is the longest side ( opposite the right angle).

So if the length of the hypotenuse = c units and the lengths of the 2 legs are a and b units The theorem says

c^2 = a^2 + b^2.

You might be interested in

Given g(x)=5x+4, solve for x when g(x)=9

Alex

Answer:

The value of <em>x</em> is equal to 1, written as <em>x</em> = 1.

General Formulas and Concepts:
<u>Algebra I</u>

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Terms/Coefficients

Functions

Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

g(x) = 5x + 4

g(x) = 9

<u>Step 2: Solve for </u><u><em>x</em></u>

Substitute in function value: 9 = 5x + 4
[Subtraction Property of Equality] Subtract 4 on both sides: 5 = 5x
[Division Property of Equality] Divide 5 on both sides: 1 = x
Rewrite: x = 1

∴ when the function g(x) equals 9, the value of <em>x</em> that makes the function true would be <em>x</em> = 1.

---

Topic: Algebra I

8 0

2 years ago

Write a quadratic equation in standard form with the given roots

stich3 [128]

${x}^{2} - \frac{15x}{2} + \frac{7}{2}$

Step-by-step explanation:

So we go backwards, since we have x= 1/2 , 7

$(x - \frac{1}{2} )(x - 7)$

Now we have to foil to get the quadratic

${x}^{2} - 7x - \frac{1}{2} x + \frac{7}{2}$

We must simplify the terms

${x}^{2} - \frac{14x}{2} - \frac{x}{2} + \frac{7}{2}$

Our final result comes out to be

${x}^{2} - \frac{15x}{2} + \frac{7}{2}$

5 0

2 years ago

Help please with #3

Alenkasestr [34]

Answer: x = 2a over b + c

Step-by-step explanation:

1. Multiply both sides by two. This cancels out 2 and turns a into 2a. It should look like 2a = bx + cx

2) Since both b and c have x’s, we turn it into (b + c)x

3. Then divide both sides by b+c to get 2a over b + c = x

6 0

3 years ago

Y is directly proportional to the square of x.

RUDIKE [14]

Answer:

The value of y is 847 for x=11

Step-by-step explanation:

It is given that y is directly proportional to the square of x

This can be written mathematically as:

$y \propto x^2$

Removing the proportionality symbol introduces a proportionality constant in the equation which is denoted by k

$y = kx^2$

Given that "When x is 5, y is 175"

$175 = k (5)^2\\175 = k*25\\k = \frac{175}{25}\\k = 7$

Putting the value of k

$y = 7x^2$

Now putting x = 11

$y = 7(11)^2\\y = 7 * 121\\y = 847$

Hence,

The value of y is 847 for x=11

5 0

3 years ago

In the following addition problem, the letters A,B,C stand for three different digits. What digits should replace each letter?

Eva8 [605]

Alright so I got A=4, B=5 and C=9

A B C
+ A C B
----------
C B A

459
+ 495
--------
954

8 0

3 years ago