Answer:
Es igual a 7.
Step-by-step explanation:
Ok, sabemos que:

Queremos calcular:

Tambien sabemos que 4 = 2*2
Entonces:

y sabemos que 2*2 = 2^2
Entonces:

y ahora podemos usar la relación:

entonces:

Ahora podemos completar cuadrados sumando y restando el termino:

Asi tendremos:

Entonces de momento tenemos que:

Sabemos que el termino que esta dentro del parentesis es igual a 3.
Y tambien podemos usar la propiedad:

en el termino de la derecha.
Asi tendremos:

What do you need help with
Answer:
Step-by-step explanation:
When working with 45-45-90 triangles the hypotenuse is the same as the other legs multiplied by root 2. Therefore if you need to find the legs and already have the hypotenuse, divide the hypotenuse by root 2.
10/ sqrt(2) = 7.1 is the rounded answer.
to double check your work just multiply 7.1 by the square root of 2 and you'll get <em>close</em> to 10. (because the answer is rounded and not exact.)
The numbers are 5 and 12.
Smaller number = x
Larger number = y
x +y =17
y = 3x - 3
x +3x -3 = 17
4x = 20
x = 5
smaller number is 5
y = 3(5) - 3
y = 12
larger number is 12.