Answer:
Step-by-step explanation:
<span>6/10x^2 ÷ 6/10x3 - 60x2
= 6/10x^2 * 10/6x^-3 </span>- 60x2<span>
= x^5 - 60x^2</span>
It is irrational. Meaning not rational because decimals cannot be fractions.
Dot product<span> of two </span>orthogonal<span> vectors is always zero.
So let's do dot product:
v</span>·w = (8i + 7j) · (6i - j) = (8)(6) + (7)(-1) = 41 which is not zero
So v and w are not orthogonal.
Hope this helps.
