<span>The answer is that x = 21/9.
Start with the original: 4(2x - 1) - 7 = 4 - x + 6
Now distribute the 4:</span> <span> 8x - 4 - 7 = 4 - x + 6.
Now combine the like terms. 8x - 11 = -x + 10.
Now add x to both sides. 9x - 11 = 10.
Now add 11 to both sides. 9x = 21.
And divide by 9 on both side. x = 21/9. </span>
That's true; the Law of Cosines works with all triangles. With right triangles it simplifies to the Pythagorean Theorem.
Answer:
3.6
Step-by-step explanation:
I think that is the answer but im not 100 percent sure
Answer:
1.5 hours
Step-by-step explanation:
there are 6 hours in between the times of 4 and 10
so 4 sister split up 6 hours equally
to do this, we divide 6 and 4
6/4 = 1.5 hours
each sister can spend 1.5 hours on the computer
Answer:
-5/9
Step-by-step explanation:
Slope of line a is,
m = (1-10) / (1-6)
= (-9) / (-5)
= 9/5
Slope of line b is -1/m
-1/m = -1 / (9/5) = -5/9
