Step-by-step explanation:
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Answer:
x=1,y=3
correct answer is (1,3)
Step-by-step explanation:
We can quickly eliminate y by subtracting one equation from the other
(-2x+y=1)-(-4x+y=-1)
2x=2
x=1
plug x=1 into equation 1
-2(1)+y=1
y=1+2=3
The air resistance acting on the un-crumbled sheet is greater.
Answer:
Step-by-step explanation:
<u>Solving</u>
- 3tanx = -4
- tanx = -4/3
- tan values are negative in the 2nd and 4th quadrant
- The base value is x = 53°
In <u>Quadrant II</u>,
- 90° + 53°
- ⇒ <u>x = 143°</u>
In <u>Quadrant IV</u>,
- 270° + 53°
- ⇒ <u>x = 323°</u>
Answer:4
Step-by-step explanation:
B) -7x-2x= -20-16
-9x= -36
X= -36 /-9
X= 4