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Zanzabum
2 years ago
6

in circle o, points a and b lie on the circle such that OA=5x-11 and OB=4(x-1) what represents the length of the circle' s diame

ter
Mathematics
1 answer:
AysviL [449]2 years ago
3 0
We know that
if <span>points a and b lie on the circle  and O is the center
so
OA is the radius
OA=OB
5x-11=4(x-1)-----> 5x-11=4x-4----> 5x-4x=11-4-----> x=7
OA=5x-11-------> OA=5*7-11-----> OA=24  units

the diameter is (OA+OB)
2*OA------> 2*24------> 48 units</span>
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Explanation:

The regression equation for an exponential data is \log y=0.14x+0.4

Where x is the number of years and

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The population x can be determined by substituting x=15 in the equation \log y=0.14x+0.4

Thus, we have,

\log y=0.14(15)+0.4

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\log y=2.5

Using the logarithmic definition \log _{a}(b)=c then b=a^{c}

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Hence, Option C is the correct answer.

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