Answer:
x will change y will not change... -4,-2
Step-by-step explanation:
if i am wrong then please inform me
If you subtract 4 from both sides your left with 15, then divide by 3 to find x. your left with x=5
Answer:
Lo mcm es 252.
Step-by-step explanation:
El objetivo de esta queston es encontrar el mínimo multiplo comun de estes tres numeros.
Para eso, factoramos estes numeros en valores primos, e despues multiplicamos estos factores.
12 21 63
12 - 21 - 63|2
6 - 21 - 63|2
3 - 21 - 63|3
1 - 7 - 21|3
1 - 7 - 7|7
1 - 1 - 1
2*2*3*3*7 = 252
Lo mcm es 252.
I'm sure there's an easier way to do this, but this method does work:
First, AB = CD = CG + GF + FD, so FG = 2.
By the Pythagorean theorem, in triangle AFD we get
and in triangle BCG,
Angles AFD and EFG form a vertical pair, so they are congruent and have measure
Similarly, angles BGC and FGE are congruent and have measure
Then the remaining angle in triangle EFG has measure
We can solve for the lengths of FE and GE exactly by applying the law of sines:
Let 
be the semiperimeter of triangle ABE, so that
Then according to Heron's formula, the area of triangle ABE is
Its A or C Because you cannot have 6/5
