Answer:
y = -2x + 5
Х-y= 9
2x + y = 4
y = 5
lmk if incorrect, please give brainliest
Answer:
try 00.1
Step-by-step explanation:
Man in gonna tell you something but it might be wrong. about 1 or 2 i think?? i'm not good at this
Answer:
D. 
Step-by-step explanation:

Since we are multiplying an exponential number to a fraction the answer is going to be

Hope this helps ❤❤❤ ;)
Answer:
180 fb*lb
45 ft*lb
Step-by-step explanation:
We have that the work is equal to:
W = F * d
but when the force is constant and in this case, it is changing.
therefore it would be:

Where a = 0 and b = 30.
F (x) = 0.4 * x
Therefore, we replace and we would be left with:

We integrate and we have:
W = 0.4 / 2 * x ^ 2
W = 0.2 * (x ^ 2) from 0 to 30, we replace:
W = 0.2 * (30 ^ 2) - 0.2 * (0 ^ 2)
W = 180 ft * lb
Now in the second part it is the same, but the integral would be from 0 to 15.
we replace:
W = 0.2 * (15 ^ 2) - 0.2 * (0 ^ 2)
W = 45 ft * lb