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Mathematics

2 answers:

german3 years ago

4 0

I think it's B because of meters and c is a little much

Nata [24]3 years ago

3 0

Answer: B) 7.99 meters

Step-by-step explanation:

The formula to find the length of arc having center angle 'x' is given by :-

$l=\dfrac{x}{360^{\circ}}\times C$ , where C is the circumference of the circle.

Given : Circumference : 23 meters

Central angle subtended by arc AB: $x=125^{\circ}$

Now, the length of arc AB is given by :-

$l=\dfrac{125}{360}\times 23=7.98611111111\approx7.99\text{ meters}$

Hence, the length of arc AB = 7.99 meters.

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We are required to express the given equation in the standard form of the equation of sphere.

Equation is basically relationship between two or more variables that are expressed in equal to form. Equation of two variables look like ax+by=c. It may be linear equation,quadratic equation, cubic equation or many more depending on the powers of variables. The standard form of the equation of sphere looks like $x^{2} +y^{2} +z^{2} =r^{2}$ .