Simplify the following expression. 3x4 + 2x3 - 5x2 + 4x2 + 6x-2x-3x4 +7XS - 3X3
1 answer:
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Answer:
<h2>d=7.2</h2>Step-by-step explanation:
We can use the Pythagoras theorem to solve for the answer.
step one:
given that the points are located at (x1,y1),(x2,y2) =(3, -6) and (-3,2)
step two:
substituting into the formula we have
To the nearest tenth we have
d=7.2
Answer:
-35,35,0
Step-by-step explanation:
Let's organise our information :
- x+xy²=250y
- x-xy²= -240y
Now let's add them together :
- x+xy²+x-xy²=250y-240y
- 2x=10y
- x=5y ⇒ y= x/5
Let's replace y by x/5 in the first equation :
- x+x*(x/5)²=250*(x/5)
- x+ (x∧3)/25 = 50x
- 49x-(x∧3)/25=0
- x(49-(x²/25))=0
- x=0 or 49-(x²/25)=0
- x=0 or 49= x²/25
- x=0 or x²=1225
- x=0 or x=
or x= -
- x=0 or x=35 or x= -35
so x=[0,35,(-35)]