Two numbers, 3 and a, have a geometric mean of 9. Find the value of a.
1 answer:
The geometric mean of two numbers x and y is √(xy).
So, if the geometric mean of 3 and a is 9 =>
9 = √(3a)
=> 9^2 = 3a
=> a = 9^2 / 3
a = 81 / 3
a = 27
Answer: the value of a is 27.
You might be interested in
Kelly? Im not sure actually... Im going with Kelly but im probably wrong
Answer:
k
Step-by-step explanation:
Answer:b
Step-by-step explanation:
253 * 0.27= 68.31 (discounted price)
253-68.31 OR 253*0.73= 184.69 (sale price)
Answer:
60
Step-by-step explanation:
