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Helen [10]
3 years ago
15

Find the circumference of a circle whose area is 247 ft2.

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
8 0

Answer:

B is the answer

Step-by-step explanation:

A = πr²

24π = πr²

24 = r²

24 = r²

\sqrt{24} = r

r = \sqrt{4}\sqrt{6} = 2\sqrt{6}

C = 2πr

C = 2π(2\sqrt{6})

C = 4\sqrt{6}π

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Helpppppppp pleaseeeee
lakkis [162]

Answer:

108 cm^2

Step-by-step explanation:

A= 1/2 b×h

so

1/2 12×18

3 0
3 years ago
The nth term of 50, 80, 110 is...
Olenka [21]

Answer:

a_n=50+(n-1)30

Step-by-step explanation:

Given series is,

50,80,110....

First term, a = 50

Common difference, d = 80-50 = 30

We need to find the nth term of the given sequence.

The nth term of an AP is given by :

a_n=a+(n-1)d

Put a = 50 and d = 30 in the above formula

a_n=50+(n-1)30

Hence, the nth term of the sequence is a_n=50+(n-1)30.

5 0
3 years ago
A person that weighs 179 lbs needs an IV Drip in mL. The drug only comes in powder form but can be converted as 10 mg is equal t
OleMash [197]

Solution:

Weight of person = 179 lbs

As given person needs IV Drip in m L.

Also,→ 10 mg = 2 m L

Now, you must remember , → 1 lbs = 0.453 Kg (approx)

→179 lbs = 179 × 0.453 Kg = 78.47 Kg (approx)

The person needs at least 60 mg for each Kg they weigh.

⇒ 1 Kg → 60 mg

⇒ 78.47 × 1 Kg → 78.47 × 60 mg

⇒ 78.47 Kg →  4708.2 mg

Also, 10 mg → 2 m L

⇒ 1 mg → \frac{1}{5}  m L

⇒ 4708 . 2 mg → \frac{1}{5} \times 4708.2  m L

⇒ 4708 . 2 mg → 941. 64 ml


8 0
3 years ago
<img src="https://tex.z-dn.net/?f=3m%20%2B%204%20%3D%201" id="TexFormula1" title="3m + 4 = 1" alt="3m + 4 = 1" align="absmiddle"
vlada-n [284]
First move the constant to the right and change its sign to the opposite,
3m=1-4

Then calculate,
3m=-3

Then divide both sides of the equation by 3,
m=-1

So the answer is m=-1
5 0
3 years ago
Read 2 more answers
Find the slope of the equation3x + 5y = 30
lutik1710 [3]
The slope: 3/5
Y-intercept:-6
4 0
4 years ago
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