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olasank [31]
3 years ago
10

Find geometric mean of 4 and 12?

Mathematics
1 answer:
Law Incorporation [45]3 years ago
4 0
The geometric mean is different than algebraic mean - algebraic is adding up all the numbers and dividing it by the number of numbers, but geometric is multiplying them and getting the root of the product of all the numbers. For example, if there were 10 numbers, we would have the 10th root of the product of all the numbers or the product to the power of 1/10.

Since there are 2 numbers, we simply have the square root - \sqrt{4*12} =2* \sqrt{12} = 4* \sqrt{3} due to that 2²=4, so we can divide what is in the square root by that and take the 2 out.
Feel free to ask further questions
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today a boat valued at $45,000.Thebvalue is expected to decrease at a rate of 8.5% each year.What is the value of the boat expec
Stels [109]

Current value of the boat = $45000

Rate at which the value decrease = 8.5%

Value decreased after 1 year = \frac{8.5}{100}\times45000=3825

Hence, value becomes = 45000-3825=41175

Value decreased after 2nd year =

\frac{8.5}{100}\times41175=3499.875

Hence, value becomes = 41175-3499.875=37675.125

Value decreased after 3 year =

\frac{8.5}{100}\times37675.125=3202.385

Hence, value becomes = 37675.125-3202.385=34472.74

So, value of the boat after 3 years becomes $34472.74

3 0
4 years ago
Can u guys answer the photo that i put?
Volgvan
4/12 = 2/6 if you simplify it into a smaller fraction ok
6 0
3 years ago
In 3-8, find the missing side length of each right triangle. 50yd.<br> 30yd.
denis23 [38]
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7 0
3 years ago
2y/5y cube + 4y square + 6y
timama [110]

Answer:

here down is the answer

(2y/5y)^3+4y^2+6y

8y^3/125y^3 +16y^2+6y

8/125+16y^2+6y

8/125+16y^2+6y=0

16y^2+6y+8/125=0

it is in the form of quadratic equation

formula :

x=(-b+-square root of b^2-4ac) /2a

here a=16,b=6&c=8/125

x=(-b+-square root of b^2-4ac)/2a

x=(-6+-square root of 36-4.09)/2a here 4.09 came by calculation

x=(-6+-31.91)/2

so

x=(-6+31.91)/2 first (+);

x=25.91/2

x=12.955;

x=(-6-31.91)/2 then(-);

x=-37.91/2

x=-18.955 ;

ans is = 12.955&-18.955;

6 0
3 years ago
Find the selling price: original price of a radio: 53.50 discount: 30​
olga55 [171]

Answer:

48.69

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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