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Artist 52 [7]
3 years ago
11

If the area of a circle is found using A=πr2, find r if the area is 25in2 and using pi equals 3.14

Mathematics
1 answer:
Olegator [25]3 years ago
5 0

Answer:

r = 2.8 in ( to 1 dec. place )

Step-by-step explanation:

substitute the given values into the formula

25 = 3.14r² ( divide both sides by 3.14 )

r² = \frac{25}{3.14} ( take the square root of both sides )

r = \sqrt{\frac{25}{3.14} } ≈ 2.8 in


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Answer:

B is the answer

Step-by-step explanation:

because it said 8 thousands so you know its not D and it says 7 tens so you know its not C and for 9 sense the hundredths has (ths) you know it's not A so the answer is B.

6 0
2 years ago
Read 2 more answers
13. please help with this
posledela

Answer:

Looking at the question and goin step by step

we get to know that equation formed wud be ->

product of nine and a number - 9*x = 9x

added to 6 => 9x+6

gives us 24

so

9x + 6 = 24

now 9x = 18 and x = 18/9 = 2

and now keeping x value = 9 *(2)+6 we get 18+6 = 24

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3 years ago
Dr. E. Quation says the Infant Mortality Rate of Korea shown by the expression; 7(m + 3) - 2. Is equal to his criminal success r
GarryVolchara [31]

Answer:

The infant mortality rate in Korea based on equality provided is:

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Step-by-step explanation:

Since the text mentions that the infant mortality rate in Korea is equal to the criminal success rate, the two expressions must equalize and clear the variable m, which is the rate in each of the expressions:

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As you can see, once the equality of the expressions is solved, <u>a rate of 1.8</u> is obtained.

6 0
3 years ago
one taco supreme and two pan pizzas provide 3850 calories. Two taco supremes and one pan pizza provide 3770 calories . Find the
Sedaia [141]

Answer:

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Step-by-step explanation:

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If we add the equations we get 3*T+3*P = 7620

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T+P = 2540 => we can use T=2540-P

Back to one of the first equations we get 2540-P+2*P=3850

P=3850-2540= 1310

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4 0
3 years ago
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Firdavs [7]

Answer:

i belive p= 8

Step-by-step explanation:

10-2= 8

8+2 is 10 so p +2 woyld =10

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