Answer:
i believe its 12.56637 but rounded off that will be 12.57
The equation factors as
.. (x +3)(x +4) = 0
By the zero-product rule, the roots are
.. x1 = -4
.. x2 = -3
We can find m∠BCD like follows: m∠BCD=90°-45°=45<span>°
Now, m</span><span>∠DBC= 180°-(90°+45°)=45°
Remember that </span>

, so

We know that hypotenuse= BC= 3in and

=∠DBC)=45°, so replacing the values we get:

We can conclude that the segment CD is 2.12 in
Answer:
its 4
Step-by-step explanation:
Answer:m =-1
Step-by-step explanation:
To solve m=-(4+m)+2
Open the brackets
m=-4-m+2
Collect like terms
m+m=-4+2
2m=-2
Divide through by -2
m=-1