Answer:
1. no solution
2. any value of x makes the equation true
3. x=1
4. any value of x makes the equation true
Step-by-step explanation: hope that answers your question :)
Started at first floor
went up 18 floors, so now we are at 1+18 or 19th floor
then cam down 11 floors, so now we are at 19-11 or 8th floor
then went up 16, so now at 16+8 or 24th floor
it stopped at 24th floor
Parallel lines run along side of each other, but never intersect.
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<== these are parallel lines...they never cross
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Answer:
Step-by-step explanation:
In each case, draw the right triangle which produces the inverse trig value. That is, label the two sides as needed, and calculate the third side.
It should be clear that
sin(2α) = 2 sinα cosα
So,
See what you can do with the others.
