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2 years ago

Please somebody help me ASAP

Mathematics

1 answer:

Marat540 [252]2 years ago

7 0

it's recorded that out of 1000 people, 762 wear the corrective lenses.

just divide 762 from 1000 and multiply that result by 100.

762/ 1000 = .762

.762 x 100 = ? %

which is 76.2 %

so, we predict that 76.2% of Americans would wear corrective lenses.

<h2>Answer: 76.2 %</h2>

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2 years ago

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<u>Analytic geometry</u>

The diagram shows a circle with center P, and two points A(-6,3) and B(2,-3) that form the diameter of the circle.

The center of the circle lies at the midpoint of A and B. The midpoint (xm,ym) can be calculated by:

$\displaystyle x_m=\frac{x_1+x_2}{2}$

$\displaystyle y_m=\frac{y_1+y_2}{2}$

Substituting x1=-6, x2=2, y1=3, y2=-3:

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$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

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$r=\sqrt{(-2+6)^2+(0-3)^2}$

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The radius of the circle is 5.

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