What is the radius of a circle with an area of 78.5 square inches?

Answers

Answer 1
Answer: the radius is 5
Hope it helps

Answer 2
Answer: To answer this question we will need to use the formula, A = π r2. π also known as 3.14. Dividing both sides of this equation by π gives

A/π = r2

and hence if you know A, divide it by π and then take the square root to find r.

So, 78.5/3.14 and r2/3.14 which gives us 25=r2. Now do the square root. √25=r2 which is 5=r. So your final answer is Radius=5.

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13. Calcule:A) a medida do ângulo interno de um triângulo equilátero
B) a soma das medidas dos ângulos internos de um polígono de 13 lados.
C) a medida do ângulo interno de um octógono regular.
D) a medida dos ângulos externos de um decágono regular.
E) a soma das medidas dos ângulos externos de um polígono regular de 12 lados.

Como posso calcular estas questões?

Answers

your answer will be B.

6w-2(4+w)=w+7 solve for w

Answers

6w - 2(4 + w) = w + 7
6w - 8 - 2w = w + 7
4w - 8 = w + 7
(4w - 8) + 8 = w + 7 + 8
4w = w + 15
4w - w = (w + 15) - w
3w = 15
3w ÷ 3 = 15 ÷ 3
w = 5

James works in a flower shop he will put 36 tulips in vases for a wedding he must use the same number of tulips in each vase how many tulips could be in each vase

Answers

Okay, so this is just like division. What you have to do is figure out, "If there are 36 flowers, how many vases should their be?" Study the 36 for a minute and think of a number that can be multiplied by the same number that would equal 36. (hint: it's between 2 and 7) Good luck!

PLEASE HELP I GIVE THANKS

Answers

The range is the difference between the highest and the lowest number.
The highest is 48.
The lowest is 40.

The range is 48-40=8 \Rightarrow C


I think option C) is the correct answer.


What is 100/5 in simplest form? btw i already know the answer

Answers

so eventhough you know the answer
the answer is to factor, make ones
another way is use calculator or long division

so factor and make 1's
exg 2/4=1/2 because 2/4=1/2 times 2/2 and 2/2=1 so 1/2 times 1=1/2 so

100=2 times 2 times 5 times 5
5=5
so 10/5=(2 ties 2 times 5 times 5)/5=(2 times 2 times 5)/1 times 5/5=(2 times 2 times 5)/1 times 1=(20)/1=20
the answer is 20

What is pi in math....

Answers

You can use pi in lots of things! Area, Circumference, etc. It is a number that's digit is infinitive(it never ends.)

3.14159265358979323846264338327950288419716939937510
58209749445923078164062862089986280348253421170679
82148086513282306647093844609550582231725359408128
48111745028410270193852110555964462294895493038196
44288109756659334461284756482337867831652712019091
45648566923460348610454326648213393607260249141273
72458700660631558817488152092096282925409171536436
78925903600113305305488204665213841469519415116094
33057270365759591953092186117381932611793105118548
07446237996274956735188575272489122793818301194912
98336733624406566430860213949463952247371907021798
60943702770539217176293176752384674818467669405132
00056812714526356082778577134275778960917363717872
14684409012249534301465495853710507922796892589235
42019956112129021960864034418159813629774771309960
51870721134999999837297804995105973173281609631859
50244594553469083026425223082533446850352619311881
71010003137838752886587533208381420617177669147303
59825349042875546873115956286388235378759375195778
18577805321712268066130019278766111959092164201989 is the first 1000 digits of pi.

First thing you should know is that Pi never ends. However, 3.14 is the first starting numbers. In math this is used to find areas of objects and such. I hope this helped!