Yis between x and z xy= 13.8 and xz= 21.4 find yz

yz = 7.6

Step-by-step explanation:

Since, y lies in between x and z.

Thus, xy + yz = xz

⇒ yz = xz - xy

Also, we have, xy = 13.8

xz = 21.4

Hence, yz = 21.4 - 13.8

⇒ yz = 7.6

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.