You are given a line that has a slope of 4 and passes through the point (Start Fraction 3 Over 8 End Fraction, one-half). Which statements about the equation of the line are true? Check all that apply. 1. The y-intercept is -1.
2. The slope-intercept equation is y = 4 x minus 1.
3. The point-slope equation is y minus Start Fraction 3 Over 8 End Fraction = 4 (x minus one-half).
4. The Point (Start Fraction 3 Over 8 End Fraction, one-half) corresponds to (x1, y1) in the point-slope form of the equation.

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Ответ:

abelxoconda

10.02.2022

Mathematics

The surface area of the star is 3.2700 x $10^{8}$ square kilometres.

EXPLANATIONS:

Diameter of the star = 1.8083 x $10^{4}$ Km.

Surface area of the star = 4 $n^{2}$

Where n is the radius of the star.

So that;

n = $\frac{ 1.8083 * 10^{4} }{2}$

= 0.90415 x $10^{4}$

n = 0.90415 x $10^{4}$ Km

Thus,

Surface area = 4 x $(0.90415*10^{4} )^{2}$

= 326994889

Surface area = 3.2700 x $10^{8}$ $km^{2}$

Therefore, the surface area of the star is 3.2700 x $10^{8}$ square kilometres.

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