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Mumz [18]
3 years ago
10

A round mirror has a radius of 5.3 inches. What is the area of the mirror in square inches, rounded to the nearest tenth?

Mathematics
1 answer:
GrogVix [38]3 years ago
7 0

Answer:

88.2 squared

Step-by-step explanation:

The formula to find the area of a circle is <em>a = pi * r ^2</em>

Let's replace the values that we know.

a = 3.14 x 5.3 ^2

First, we should do 5.3 ^2, which is 28.09.

a = 3.14 x 28.09

Now we are able to do 3.14 x 28.09 which is 88.2026

But that isn't it! We need to round to the nearest tenth, which is this digit:

88.<u>2</u>026

Since next to the 2 there is a 0, you take out all the numbers after that 2. Which leaves you with:

88.2

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d.

Step-by-step explanation:

Here is an answer I found on the internet (kudos to investopedia.com)

If a Z-score is 0, it indicates that the data point's score is identical to the mean score.

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3 years ago
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Graph the ellipse with equation x squared divided by nine plus y squared divided by sixteen = 1
gladu [14]
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The general for mula of an ellipse is:

(x-h)²/a²  + (y-k)²/b² = 1. Since h = k = 0, this ellipse
x²/9 + y²/16 = 1
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Moreover sin b>a  so the majore axis is (on the y-axis) and a the minor axis (on the x-axis) [Its shape is as a vertical egg].

On a system of perpendicular axis that intercept in O., take on the x-axis 2 points A & B with respective coordinate A(3.0) and B(-3,0)
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Airida [17]

Answer:

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Step-by-step explanation:

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z1=\frac{2}{5} (cos63  + isin63)\\z2=\frac{10}{3} (cos 117 + isin117})

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7 0
4 years ago
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