Question

Find the value of y.
7
х
3
Z
y = V[?]
Give your answer in simplest form.

Answer 1

Answer:

21

Step-by-step explanation:

By geometric mean theorem:

${y}^{2} = 7 \times 3 \\ \\ {y}^{2} = 21 \\ \\ \huge \: y = \sqrt{ \boxed{21}}$