Answer:
2/3 =x
Step-by-step explanation:
4 x
------- = ------------
6(x+4) x+4
Multiply the right side by 6/6
4 6 x
------- = ------------
6(x+4) 6( x+4)
Since the denominator is the same, the numerators have to be the same
4 = 6x
Divide each side by 6
4/6 =x
2/3 =x

Considering the diagram.
is shown to be acute, so
.
Angles in a triangle add to 180°, so
.
Using the law of cosines,

No, the answer is actually 14
Hi! what graph? you didn't attach but its okay
Answer:
Hello,
Step-by-step explanation:
n! + (n-1)!
=(n-1)! * n+ (n-1)!
=(n-1)! * (n+1)