Answer:
MB = 21
Step-by-step explanation:
If M is the midpoint of AB, then AM = MB
AM + MB = AB
AM + AM = AB
Replace with AM = 3x+3 and AB = 8x-6
3x+3 + 3x+3 = 8x-6
Combine like terms
6x +6 = 8x-6
Subtract 6x from each side
6x-6x +6 = 8x-6x-6
6 = 2x-6
Add 6 to each side
6+6 = 2x-6+6
12 = 2x
Divide by 2
12/2 = 2x/2
6 =x
Now we want to find MB = AM
MB = AM
MB = 3x+3
= 3(6) +3
= 18+3
=21
Answer: Completing the square changes the value of the equation.
Step-by-step explanation:
For example we have expression :
which is equivalent to
We add and subtract to form a complete square.
, where is a perfect square binomial.
Thus, the true statements about the completing squares are:-
- Completing the square will always work.
- When completing the square you add and subtract the same value to the equation.
- When completing the square you create a perfect square binomial.
Completing the square does not change the value of the equation.
Answer:
x=10/14 or 0.714
Step-by-step explanation:
1. (4/5)*(5/7) = (4/5)x
2. 20/35 = 4x/5
3. Cross multiply:
140x=100
x=100/140=10/14
the answer is the distributive property I think