Answer: Yes!
Step-by-step explanation:
Yes, graphite is composed of 100%carbon. With this, can we say that graphite is an element or compound of carbon? Compound is composed of two or more elements combined in a substance in definite proportions, in the form of molecules held together by chemical bonds.
Answer: 81
Step-by-step explanation: Because, (-3)^4=-3*-3*-3*-3=-(-81)=81
Answer:
(2,-1)
Step-by-step explanation:
If you plug each answer into the equation, (2,-1) is the only answer that makes the equation true. Hope this helps!
Answer:
x=-7/3
Step-by-step explanation:
2(x+3)+(x+3)-2=0
2x+6+x+3-2=0
3x+7=0
3x=-7
x=-7/3
