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liubo4ka [24]
3 years ago
14

Find the area of the given circle. Round to the nearest tenth.

Mathematics
1 answer:
Paha777 [63]3 years ago
8 0
diameter=12\ ft\\\\diameter=2\ radius\\\\2r=12\ ft.\ \ \ /:2\\r=6\ ft.\\\\A=\pi r^2\\\\A=\pi\cdot6^2=36\pi\ (ft^2)\approx36\cdot3.14=113.04\ (ft^2)\approx113.0\ (ft^2)
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How to find slope when there is the y intercept and x-intercept?
natta225 [31]
First graph your x and y intercept then pick any two points on the line.
\frac{rise}{run} = \frac{y2 - y1}{x2 - x1}
that's the equation used to find your slope

Example:

(4,2) (8,6) let's say those are the points you pick from the line

so then you subtract 6-2=4 (6 is your y2 and 2 is your y1)

then subtracts 8-4=4 (8is your x2 and 4 is your x1)

then your left with
\frac{2}{4}
if you can reduce the reduce in this case you can which leaves you with
\frac{1}{2}
and that's how you find the slope
4 0
3 years ago
Beth is putting up a fence in her yard so her dog can play outside. She purchased 80 feet of fencing. If the fenced area is a re
mariarad [96]

Answer:

10 feet

Step-by-step explanation:

The formula for the Perimeter fo a rectangle

= P = 2L + 2W

Where:

L = Length

W = Width

From the question

P = 80 feet

W = 30 feet

Hence:

80 = 2L + 2(30)

80 - 2(30) = 2L

80 - 60 = 2L

20 = 2L

L = 20/2

L = 10 feet

Hence, the length of the fenced area = 10 feet

4 0
3 years ago
Suppose you have $12,000 to invest. If part is invested at 10% and the rest at 15%, how much should be invested at each rate to
Ivahew [28]
X=invested at 10%12000-x=invested at 15% .10x+ (.15)(12000-x)=1440 ;; 12% of the total amount is 12% of $12000. .10x + 1800-.15x=1440
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3 0
3 years ago
Brian bought 4 CDs that were each the same price. Including sales tax, he paid a total of $60.80 . Of that total, $3.60 was tax.
Yuliya22 [10]

Answer:

14.30

Step-by-step explanation:

$60.80 - $3.60 = 57.20/4 = 14.30

3 0
3 years ago
HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
goldfiish [28.3K]
Setup is
y = k/x
8 = k/3
k = 24

Now use 6 for y
6 = 24/x
x = 24/6 = 4 or A
5 0
3 years ago
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