Answer:
<u>65.</u>
Step-by-step explanation:
1. Write the expression.

2. Expand the expression.
![3x3x3x3 -[(-4)x(-4)]](https://tex.z-dn.net/?f=3x3x3x3%20-%5B%28-4%29x%28-4%29%5D)
3. Simplify.
![81 -[16]\\\\65.](https://tex.z-dn.net/?f=81%20-%5B16%5D%5C%5C%5C%5C65.)
<span>The graph of a system of equations will intersect at more than 1 point sometimes. Because in some cases it can't intersect axis.</span>
Answer:
1 : 9.75 * 10⁷
Step-by-step explanation:
To find n, we have to divide the real distance by the scale distance. This is 7.8 * 10⁸ / 8 = 0.975 * 10⁸ = 9.75 * 10⁷ which means that the ratio is 1 : 9.75 * 10⁷.
Answer:
6√2
Step-by-step explanation:
Gm = √a×b
= √4×18
= √72
= √36×2
= √6²×2
= 6√2