Carbon is Carbon so it's just one atom.
Air is mostly O2, N2, H2O and ....
Salt is NaCl and not one atom ;)
Answer:
The length is 13 feet and the width is 5 feet
Step-by-step explanation:
Let w represent the width
Since the length is 3 more than twice the width, it can be represented by 2w + 3
Using this, set up an equation and solve for w:
w + (2w + 3) = 18
3w + 3 = 18
3w = 15
w = 5
So, the width is 5
Use 2w + 3 to find the length:
2w + 3
2(5) + 3
= 13
The length is 13 feet and the width is 5 feet
Answer:
The leading coefficient is -3
The constant is 2
Step-by-step explanation:
The standard form of a polynomial is the descending order, that means that it must be written according from its higher power, down straight to the coefficient with no variable.
Hence, the leading coefficient is the one that is next to the highest exponent of the polynomial, in this case: =3x2.
The second term is 5x
And the last is 2. the constant
Answer:
The answer is option A.
<h3>804.2cm²</h3>
Step-by-step explanation:
Surface area of a sphere is 4πr²
where r is the radius
radius = diameter / 2
radius = 16/2 = 8cm
Surface area of the sphere is
4π (8)²
= 4(64)π
= 256π
= 804.2cm²
Hope this helps you.
Answer:
y=-2x
Step-by-step explanation:
should look like a straight line, that is going up to the left. crossing (0,0) and (1,-2)