Answer:
28
Step-by-step explanation:
The product of -4 and the unknown number n is -4n.
4 more than the product of -4 and the unknown number n is -4n + 4.
Letting n = -6 results in the value -4(-6) + 4, or 24 + 4, or 28.
Vector

.

. So the sum is

.
For the second, the magnitude is the square root of the sum of the squares of the components. This is equal to

.
Answer:
<em>Volume = ( About ) 2406.165 cm^3</em>
Step-by-step explanation:
If you consider a cube or a rectangular prism, you could identify it's volume through the multiplication of it's Base by height. A pyramid has 1 / 3rd that volume, so in order to take a volume of the figure to the left, we would multiply Base * height and take 1 / 3rd of that;

<em>Solution ⇒ ( About ) 2406.165 cm^3</em>
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Hope that helps!
Just use the formula time = distance / speed
395.1/79= 5.001
It will take the train approximately five hours to reach Memphis