Answer:
second one
Step-by-step explanation:
Answer:
x = 4 ±√26
Step-by-step explanation:
Please write this as x^2 - 8x = 10, or x^2 - 8x - 10 = 0. " ^ " indicates exponentiation.
Let's complete the square:
x^2 - 8 x can be rewritten as
x^2 - 8x + 16 - 16, and so
x^2 - 8x = 10 becomes x^2 - 8x + 16 - 16 - 10 = 0, or
(x - 4)^2 = 26
Taking the square root of both sides, we get:
x - 4 = ±√26, or
x = 4 ±√26
First exercise:
Two points are collinear if they lie on the same line. So, option A is correct, because I, H and G all lie on the same line.
Second exercise:
Opposite rays start from the same point and go in two opposite direction. So, Option B is correct, because the rays defined by the other options always have a point in common, so they actually are opposite rays. Also, YW and YX are the same ray, because they start from the same point and continue in the same direction.
Answer:
0.7649
Step-by-step explanation:
just input 7649÷10000 which results to 0.7649
