Hi there!
So we know that the two train together is a total of 192 tons and the difference of their weights is 120 tons...
Ok let think...
When we’re looking at the once place, you’ll see a two... this means that the two train both have a ending of 1 since 2 is split into 1...
That would be another clue..
Now let think again...
If it would be 151 and we subtract by 120.. we would get...

Well it ends with a 1 so it would be perfect but we have to see if 151 and 31 together adds up with the total of 192..

This means that train A could be 151 tons or 31 tons and train B can also be wither 151 tons or 31 tons...
Answer:
x = -9
Step-by-step explanation:
x = -y/4
y = -2(-y/4) + 18
y = y/2 + 18
y/2 = 18
y = 36
x = -36/4
x = -9
Answer:
1. 30°
2.90°
3. 12 units
Step-by-step explanation:
I can't believe there's nothing confirming that this is a parallelogram/a rhombus?! Assuming is awful, and I wish you could say you can't know for sure lol but for the sake of this answer, let's just call it a rhombus. (There was probably some context elsewhere that you didn't put over here, hopefully.)
1.
The reason I say this is: in a rhombus, the diagonals bisect the angles. This means that the diagonals split the angles they meet into two equal parts. That way, it would make sense. m∠QPR=m∠SPR=30°.
2.
If it is a rhombus, the diagonals are perpendicular to each other, so m∠QTP should be 90°.
3.
Diagnonals in a rhombus (and in any parallelogram) bisect each other, so PT=TR=6, and RP=PT+TR=12 units.
Sorry if this is all dreadfully wrong, and I hope I helped you!
ANSWER
False
EXPLANATION
The tangent function has no amplitude because it is not bounded.
The given tangent function is

This is of the form
f(t)=a tan(bt)
The period is given by


The first statement is true but the second is false.
Hence the whole statement is false.