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erastova [34]
1 year ago
6

El triple de un número es 21

Mathematics
1 answer:
nata0808 [166]1 year ago
6 0

Answer: la respuesta es 7

Step-by-step explanation:

Tres veces 7 es 21

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Solve by using Pythagorean Theorem, a= 5, b= x-1, and c=x
charle [14.2K]

The value of x is 13, from the values of x the values of a,b and c becomes 5, 12 and 13, which is obtained by using Pythagorean theorem.

Step-by-step explanation:

The given is,

             a = 5

             b = x - 1

             c = x

Step:1

      Pythagorean theorem is,

              a^{2} + b^{2} = c^{2}................................(1)

      (  It states that the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides )

      From the given values the equation (1) becomes,

                       5^{2} + (x-1) ^{2} = x^{2}

                             ( (a-b)^{2} = a^{2}  + b^{2} -2ab )

               25 + ( x^{2} + 1 - 2x ) = x^{2}

                           25 + 1 -2x = 0               ( ∵ Eliminate x^{2} in both sides)

                                     26 = 2x

                                       x = 13

Step:2

        From the values of x,

                   a = 5

                    b = ( 13 - 1 ) = 12

                   c = 13

Result:

            The value of x is 13, from the values of x the values of a,b and c becomes 5, 12 and 13, which is obtained by using Pythagorean theorem.

3 0
3 years ago
Which of the following are equations for the line shown below? Check all that
marissa [1.9K]

Answer:

<u>\fbox{ Correct Answer Option B \& D}</u>

Step-by-step explanation:

Hello, to be the correct equation of line the given equation must satisfy all the points lying on that line.

I've solved all the equation for given both the points and concluded Option B & C are the correct equation for the line. The image of solution I'm attaching with this answer.

\small \sf Thanks  \: for \:  joining  \: brainly  \: community!

6 0
1 year ago
I = prt Time = 3 years Interest Rate = 5% Principal = $7,430 Use the information to answer the question. How much interest is pa
bearhunter [10]
I = prt

p = 7430
r = 5%....turn to decimal = 0.05
t = 3

I = (7430)(0.05)(3)
I = 1114.50 <===
4 0
3 years ago
Read 2 more answers
Can some one please help me with this??
mart [117]
2.

0.05 miles

3.

a

4.

a

5.

1 Book for ever 10$

6.

28 MPH



Thats it!
Hope this helps
7 0
3 years ago
HELP ASAP ITS EASY DEGREE CR AP JUST PLS ILL GIVE BRAINIEST NO GUESSING PLSSSSS
lana [24]

Answer:

110°

Step-by-step explanation:

A+B+C=180

48+28+C= 180

70+C=180

subtract 70 form both sides

C= 180

plz mark me brainliest. :0

5 0
2 years ago
Read 2 more answers
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