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3 years ago

A circular mirror has a diameter of 18 inches. What is the area of the mirror?

Mathematics

2 answers:

alexira [117]3 years ago

8 0

Answer:

The exact area of the mirror is 254.469004941 in²

Step-by-step explanation:

Use the area of a circle formula.

↑

( A = pi * r² )

Veronika [31]3 years ago

3 0

Answer:

254.34

Step-by-step explanation:

pie (3.14...) Radius(9) 9^2=81

3.14 times 81 is 254.34

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Suppose there is a 1.2°F drop in temperature for every thousand feet that an airplane climbs into the sky. If the temperature on

Nesterboy [21]

Answer: $49.7^{\circ}F$

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3 years ago

What is the midpoint of the line segment with endpoints (–5.5, –6.1) and (–0.5, 9.1)?

astraxan [27]

$\bf ~~~~~~~~~~~~\textit{middle point of 2 points }
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(\stackrel{x_1}{-5.5}~,~\stackrel{y_1}{-6.1})\qquad 
(\stackrel{x_2}{-0.5}~,~\stackrel{y_2}{9.1})
\qquad
% coordinates of midpoint 
\left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right)
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\left( \cfrac{-0.5-5.5}{2}~~,~~\cfrac{9.1-6.1}{2} \right)\implies \left( \cfrac{-6}{2}~~,~~\cfrac{3}{2} \right)\implies \left(-3~,~1\frac{1}{2} \right)$

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2 years ago