The geometric mean of 9 and 15

The geometric mean of 9 and 15 is 11.62

Given two integers A and B, the geometric mean of the integers is expressed as:

GM = √A×B

Given the values 9 and 15, the geometric mean of the values is expressed as:

GM = √9×15

GM = √135

GM = 11.62

Hence the geometric mean of 9 and 15 is 11.62

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Step-by-step explanation:

Geometric mean can be calculated like such:

a/x = x/b

Where a and b are your 2 numbers. By solving for x by cross-multiplying you get:

x^2=ab

So to solve for geometric mean, all you have to do is to multiply the two numbers and take the square root:

9(15)=135

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system

y= 2x+7

changed to y= 5x +7

as slope is increased from 2 to 5

therefore it would be less steeper

so, option d) is correct