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luda_lava [24]
3 years ago
7

Find the area of the circle shown below if the diameter is 24 inches. Use 3.14 for π. Use the formula π x r^2

Mathematics
2 answers:
gregori [183]3 years ago
7 0
<h3>Answer:  D) 452.16 square inches</h3>

==============================================================

Explanation:

The diameter is 24 inches, so the radius is half that at r = d/2 = 24/2 = 12 inches.

We'll use this along with the approximation pi = 3.14 to get the area

A = pi*r^2

A = 3.14*12^2

A = 452.16 square inches

Your teacher should have used "square inches" instead of "inches" as the unit.

We can abbreviate the "square inches" into "sq in" or "in^2".

This value is approximate since pi = 3.14 is approximate. Use more decimal digits of pi to find a more accurate value.

The exact area is 144pi

Mariana [72]3 years ago
4 0

Answer:

D. 452.16 sq inches

Step-by-step explanation:

d = 24 ==> r = 24/2= 12 inches

the area = π×r²

= 3.14 × 12²

= 3.14 × 144

= 452.16 sq inches

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Step-by-step explanation:

You need to use the following formula that is used to find the area of a trapezoid:

A=(\frac{M+m}{2})h

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Based on the information given in the exercise, you can identify that:

M=c=36\ ft\\\\m=a=23\ ft\\\\h=b=32\ ft

Knowing these values, you can substitute them into the formula:

A=(\frac{36\ ft+23\ ft}{2})(32\ ft)

Finally, you must evaluate in order to find its area. This is:

A=(\frac{59\ ft}{2})(32\ ft)\\\\A=\frac{1888\ ft^2}{2}\\\\A=944\ ft^2

7 0
3 years ago
11 4/7 as an improper fraction​
ivolga24 [154]

Answer:

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3 years ago
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When the function f(x) = 6(9)x is changed to f(x) = 6(9)x + 1, what is the effect? (5 points) There is no change to the graph be
amm1812

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Answer:

2x-3

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and second one is -y+2

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6 0
2 years ago
Can someone solve this Im to lazy !
Sladkaya [172]
Not impressed that you consider yourself "too lazy" to at least get started on the solution of this problem.  Why not "give it the old college try?"

Start by  choosing letters to represent the unit cost of each popcorn and drink:
p:  popcorn, d:  drink.

Then 2p + 3d = $22.25 and 12p+4d=$39.00
Note that the unit of measurement of all 6 terms here is " $ ".

Solve this system of linear equations simultaneously:

2p + 3d = $22.25
12p+4d=$39.00

In your shoes I would mult. the first equation by -6 and then combine the result with the second equation.  p will temporarily disappear, and you'll be left with an equation in d only, enabling you to find the unit cost of a drink.

Come on.  Show your stuff.  You'll need to respond through Comments.


7 0
3 years ago
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