<span>You do need the slope. It's not obvious in "Standard Form".
Ax + By = C ==> y = -(A/B)x + (C/B)
There's your slope to compare. Find -A/B for each.
3x + 2y = 4 ==> Slope = -3/2
6x + 4y = 5 ==> Slope = -6/4 = -3/2
3x + y = 4 ==> Slope = -3
The top two examples COULD be parallel. If the constant is the same, that's a bit sneaky because they are really the SAME line. That's not really parallel.</span>
Answer:
x^2 + 8x+16 is (x+4)^2
Step-by-step explanation:
The correct answer would be D, because the lines are not parallel.
Answer:
2.3
Step-by-step explanation:
Using SOH CAH TOA, we can label CB as the alternate side seeing as it's opposite to the known angle 50 degrees. We know AB is the hypotenuse since it's the longest side. Therefore CA must be the alternate side.
Since we want to know BC, and we know information about AB, we need to use the use of the hypotenuse and the opposite. In SOH CAH TOA, SOH uses both of these.
Using S O H, we understand that sin(50) * 3 = CB
Therefore CB = 2.3 to 1 decimal place.
It would be 2700.
540x2=1080
810x2= 1620
1620+1080= 2700
