All categories

2 years ago

5^2 + 12^2 =13^2 true or false?

Mathematics

1 answer:

Luden [163]2 years ago

6 0

True

5^2 = 25
12^2 = 144

25+144=169
13^2=169

You might be interested in

15x-7=2+12x I need help with this

Amanda [17]

Answer:

$\huge{ \boxed{ \bold{ \tt{x = 3}}}}$

<h3>♁ Question : Solve for x</h3>

15x - 7 = 2 + 12x

<h3>♁ Step - by - step explanation</h3>

$\text{15x - 7 = 2 + 12x}$

Move 12x to L.H.S ( Left Hand Side ) and change it's sign

➛ $\sf{15x - 12x - 7 = 2}$

Move 7 to R.H.S ( Right Hand Side) and change it's sign

➛ $\sf{15x - 12x = 2 + 7}$

Subtract 12x from 15x

Remember that only coefficients of like terms can be added or subtracted.

➛ $\sf{3x = 2 + 7}$

Add the numbers : 2 and 7

➛ $\sf{3x = 9}$

Divide both sides by 3

➛ $\sf{ \frac{3x}{3} = \frac{9}{3}}$

➛ $\boxed{ \bold{ \sf{x = 3}}}$

The value of x is $\boxed{ \sf{3}}$

✄ ✄ ✄ ✄ ✄ ✄ ✄ ✄ ✄ ✄ ✄ ✄ ✄ ✄ ✄

☄ Now, let's check whether the value of x is 3 or not!

<h3>☥ Verification :</h3>

$\sf{15x - 7 = 2 + 12x}$

$\dashrightarrow{ \sf{15 \times 3 - 7 = 2 + 12 \times 3}}$

$\dashrightarrow{ \sf{45 - 7 = 2 + 36}}$

$\dashrightarrow{ \sf{38 = 38}}$

L.H.S = R.H.S ( Hence , the value of x is 3 ).

✄ ✄ ✄ ✄ ✄ ✄ ✄ ✄ ✄ ✄ ✄ ✄ ✄ ✄ ✄

<h3>✒ Rules for solving an equation :</h3>

If an equation contains fractions ,multiply each term by the L.C.M of denominators.
Remove the brackets , if any.
Collect the terms with the variable to the left hand side and constant terms to the right hand side by changing their sign ' + ' into ' - ' and ' - ' into ' + ' .
Simplify and get the single term on each side.
Divide each side by the coefficient of variable and then get the value of variable.

Hope I helped!

Have a wonderful time ! ツ

~TheAnimeGirl

5 0

2 years ago

a rectangular picture frame has a width of 9 cm and a length of x cm. which expression represents the perimeter of the picture f

Semmy [17]

The question is asking to choose among the expression that represents the perimeter of the picture frame where as a rectangular picture frame has a width of 9cm and length of x cm and base on the fact, I would say that the answer would be 2x times 18. I hope you are satisfied with my answer

6 0

3 years ago

Read 2 more answers

Factoring tables. plzzz help

crimeas [40]

Need more context to answer this question. Please send me the rest of the context

8 0

3 years ago

One kilometer is 1000 meters complete the table 250 meters equals how many kilometer

Misha Larkins [42]

0.25 km is the answer.

1km = 1000m

x = 250

x = 250/1000

x = 0.25

6 0

3 years ago

GIVING BRAINLIEST OUT FOR WHOEVER IS CORRECT AND FAST!<br> All factors of 40, 41, 3526, and 1001.

mel-nik [20]

Answer:

Step-by-step explanation:

factors for

40=1,2,4,5,8,10,20,40

41=1,41 prime

3526=1,2,41,43,82,86,1763,3526

1001=1,7,11,13,77,91,143,1001

5 0

2 years ago

Read 2 more answers