Step-by-step explanation:
-3-6x-42=42-6x
-45-6x=42-6x
-87=0
Answer:
Congruent figures are the same size and the same shape.
We need an image to find which polygons are congruent. Could you give one and then i'll solve it?
Answer:
1/108
Step-by-step explanation:
One of the boys and one of the girls are siblings
1/9 × 1/12
1/108
Answer: 
Step-by-step explanation:
By the negative exponent rule, you have that:

By the exponents properties, you know that:

Therefore, you can rewrite the left side of the equation has following:

Descompose 32 and 8 into its prime factors:

Rewrite:

Then:

As the base are equal, then:

Solve for x:
