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algol13
3 years ago
5

7k-6,2k+14 solve for K

Mathematics
1 answer:
Phantasy [73]3 years ago
8 0

Answer:

0.8k +14

Step-by-step explanation:

See the steps below:)

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Si un triángulo tiene una hipotenusa de 15 cm y un cateto que mide 12 cm, ¿cual es la longitud del otro cateto?
BartSMP [9]

Answer:

   

9cm

Explicación:

El teorema de pitagoras nos dice que la hipotenusa al cuadrado es igual a la suma de los catetos al cuadrado:

c^{2} =a^{2} + b^{2}

Donde c es la hipotenusa y a  y b son los catetos.

Por lo cual, podemos reemplazar c por 15cm y a por 12cm :

15^{2} =12^{2} +b^{2}

Finalmente , debemos resolver la ecuación para b, así que b es igual a :

225=144+b^{2} \\225-144=144+b^{2} -144\\81=b^{2} \\\sqrt{81} =b\\9=b

Por lo tanto, la longitud del otro cateto es 9 cm

3 0
3 years ago
Which of the following is a solution to the equation 0=x2+6x+4 ?
Llana [10]

Answer:

A

Step-by-step explanation:

Given

x² + 6x + 4 = 0 ( subtract 4 from both sides )

x² + 6x = - 4

Solve using the method of completing the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(3)x + 9 = - 4 + 9, that is

(x + 3)² = 5 ( take the square root of both sides )

x + 3 = ± \sqrt{5} ( subtract 3 from both sides )

x = - 3 ± \sqrt{5} , thus

x = - 3 - \sqrt{5} → A

x = - 3 + \sqrt{5}

4 0
3 years ago
(-5q squared p) cubed
EleoNora [17]

(-5q^{2} p)^3\\-125q^6p^3

Final answer: -125p^3q^6

7 0
4 years ago
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enot [183]

Answer:

Margie spent $27.05.

Step-by-step explanation:

1.5 * 2 + 14 * 1.6 + 1 * 1.65 = 27.05.

5 0
3 years ago
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Can someone help me with one of these or both ?
kifflom [539]

Answer: 280 for number 2

Step-by-step explanation: I think I ain’t not % sure

3 0
3 years ago
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