R=X²/Y X=3.8x10⁵
y=5.9x10⁴
work out the value of R
give your answer in standard form to an appropriate degree of accuracy

In a sale there is 25% of all prices a chair costs £45 in sale how much was it before the sale

The least common denominator of 4/8 and 11/18

Simplify each expression using the definition, identities, and properties of imaginary numbers. match each term in the list on the left to its equivalent simplified form on the right. 1. (i 3)2(-i 0)3(3i 2)4 -4 2. (i 3i -5)2(i 4i -3)0 1 3. (-i 4i 2)(2i)2(i -1i 5)3(i 0)-3 -i 4. i 3[(i 2i 3i 4)(i 0i 2i 5)]2 81