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Flauer [41]
3 years ago
7

Find the area of the circle. Round your answer to two decimal places, if necessary.​

Mathematics
1 answer:
nirvana33 [79]3 years ago
3 0

Answer:

379.94 in.²

Step-by-step explanation:

To find the area of a circle, multiply the radius by itself twice, then multiply the product by pi.

a=\pi r^2

In the image, the diameter is shown.

To find the radius of a circle, divide the diameter by 2.

22/2=11

The radius of this circle is 11 inches.

Next, multiply the radius by itself twice.

11*11=121

Lastly, multiply the product by pi (3.14).

121*3.14=379.94

Therefore, the area of this circle is 379.94 inches squared.

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In converting 10 inches to centimeters, what unit (omit the number) would you place in the numerator of your ratio?
belka [17]

Answer:

  centimeters

Step-by-step explanation:

The numerator of the conversion factor always has the "to" units. The denominator has the "from" units. That way, when you multiply, the "from" units cancel:

  (xx <em>from</em>) · (yy <em>to</em>)/(zz <em>from</em>) = xx·yy/zz · (<em>from/from</em>) · <em>to</em> = xx·yy/zz · <em>to</em>

Here, you want to convert to centimeters, so centimeters will be the units in the numerator.

  10 in · (2.54 cm)/(1 in) = 25.4 cm

_____

The conversion factor is always "1". That is, the numerator and denominator are always <u>equal</u> in value. Here, 2.54 cm = 1 in, so (2.54 cm)/(1 in) = 1. You can multiply by 1 anytime you like. For units conversion, it only has the effect of changing the units.

5 0
3 years ago
What is the range of f(x) = 3X + 9?<br> {yly&lt;9}<br> {yly&gt;9}<br> {yly&gt; 3}<br> {yly&lt;3}
4vir4ik [10]

Answer:

the set of all real numbers

Step-by-step explanation:

f(x) = 3X + 9 is a polynomial, and so both the domain and the range are "the set of all real numbers."  

None of your answer choices match this.  Check with your teacher if you can.

7 0
3 years ago
The price of admission to an amusement park is $35 for adults and $25 for children. a group of 14 people visit the park and pay
grandymaker [24]
X+y=14 (*25)
35x+25y=410
---------------------
35x+25y=410
25x+25y=350
---------------------
10x=60
x=6

6 0
3 years ago
Which of the following is the least? WILL GET MARKED BRAINLIST
hodyreva [135]

Answer:

With my predictions it is 2/11 hope it helps

5 0
2 years ago
Read 2 more answers
Pls help me find the answer
gregori [183]
The surface area is 1536
3 0
3 years ago
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