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AVprozaik [17]
3 years ago
10

Need answer quickly ;D

Mathematics
1 answer:
Strike441 [17]3 years ago
7 0

Answer:

I think it is the last one

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PLEASE HELP MEEEEE
Elena-2011 [213]

Answer:

a = 36 and a = 27

Step-by-step explanation:

The geometric mean of two numbers is the square root of the product of the two numbers.

Say for example we have the numbers x and y, the geometric mean z is mathematically;

z = √xy

For the first question, our z is 12, x and y are 4 and a respectively.

12 = √4a

square both sides

144 = 4a

a = 144/4

a = 36

For the second question

z is 9, x and y are 3 and a respectively

9 = √3a

square both sides

81 = 3a

a = 81/3

a = 27

5 0
3 years ago
Can someone be my math teacher ? pls message ​
weqwewe [10]

Answer:

which grade do you want to get helped by ?

7 0
3 years ago
Plsssss help plsssssss
Igoryamba
B is the correct answer.
7 0
3 years ago
Vertex of parabola (x-7)^2+5
UNO [17]

Answer:

(7,5)

Step-by-step explanation:

You can use the desmos website for math problems like this.

4 0
3 years ago
Read 2 more answers
A.
Oliga [24]
I’m not sure what the answer is, just trying to get points.... but I hope you find your answer :)
4 0
2 years ago
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