<span>The density of helium is approximately 2 times the density of hydrogen.</span>
Answer:
y-1=2*(x+2)
Step-by-step explanation:
Answer:
1. x^2−16
2. x^3+27
3. x^3−4x^2
4. x^2−9
Explanation: Step-by-step
1. Let's simplify step-by-step.
x2−16
There are no like terms.
2. Let's simplify step-by-step.
x3+27
There are no like terms.
3. Let's simplify step-by-step.
x3−4x2
There are no like terms.
4.Let's simplify step-by-step.
x2−9
There are no like terms.
I can’t see the answer it’s so blurry
You could use a calculator, or do mental math.