Answer is A. 20.25
cause 20.25 x 9 = 81
√81 = 9
so 9 is the geometric mean <span>between 4 and 20.25</span>
Answer:
The answer is 88.
Step-by-step explanation:
68+81+74+89+x/5=80
312+x/5=80
312+x=80*5
312+x=400
x=400-312
x=88
Answer:
−
2
√
3
Step-by-step explanation:
Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.
Answer:
x = 20.
Step-by-step explanation:
1/2x + 40 = 50
1/2x + 40 - 40 = 50 - 40
1/2x = 10
1/2x * 2 = 10 * 2
x = 20
