What's 4 to the power of 5.5
45.5 = 45 + .5 = 45 + 1/2
= 45 x 41/2 (Adding exponents means multiplying bases.)
= 45 x √4 (A 1/2 exponent is a square root.)
= 1024 x 2
= 2048
Why don't you try & use any calculator with a X^Y key & get the answer?
4^5.5 =2048