If you would like to calculate (a + 1) * (a + 2) - (a + 1) * (a - 2) - a - 1, you can do this using the following steps:
(a + 1) * (a + 2) - (a + 1) * (a - 2) - a - 1 = a^2 + 2 * a + 1 * a + 2 - (a^2 - 2 * a + 1 * a - 2) - a - 1 = a^2 + 3 * a + 2 - a^2 + 2 * a - 1 * a + 2 - a - 1 = 3 * a + 3
The correct result would be 3 * a + 3.
Answer:
C
Step-by-step explanation:
according to sine rule,
sin(30)/8=sin(x)/11
solving above equation will give
x=43.3
I think it is 827!!!!!!!!!!
- Move 4y to the front so it should be 4y=12-3x
- Divide the equation like how I did in the picture above then you should have y=3-3/4x
- Then you switch it to y=-3/4x+3 and that's your answer.
Now for 6x+2y=6
- Move 2y to the front so it looks like 2y=6-6x
- Then you divide the equation by 2 like in the photo above and that should give you y=3-3x
- Finally you switch the equation to y=-3x+3 because we are using the Slope Intercept Form. (Y=mx+b). That's your answer.
Sorry if my handwriting is bad.