Hola!
x = 7 , x = -7
Explicación:
Comienza restando 15 en cada lado:

Usted obtiene:

Ahora divide ambos lados por 2:

Usted obtiene:

Como la ecuación está al cuadrado, tendrás que hacer:

que te da: 
Entonces:

Answer:
4.7 to nearest tenth.
Step-by-step explanation:
By Pythagoras:
8^2 = x^2 + 6.5^2
x^2 = 8^2 - 6.5^2
x^2 = 64 - 42.25 = 21.75
x = √21.75
= 4.6637
Answer:
B
Step-by-step explanation:
Pick any point on both triangles and compare the points to see how they changed.
C to F went from (0,4) to (0,2) went down by 1/2
and it's a dilation of the bigger one of 1/2 so it's B