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I am Lyosha [343]
2 years ago
10

Please help ive been on this question for hours

Mathematics
2 answers:
Grace [21]2 years ago
8 0

Answer: 52.4

Step-by-step explanation:

faust18 [17]2 years ago
7 0

Answer:

π\3 ≈ 1.0 in²

Step-by-step explanation:

area of a full circle= 2πr = 2π(10) = 20π

central angle of full circle= 360°

area of the shaded region= ?

angle of shaded region= 60°

\frac{360}{60}  =  \frac{20\pi}{?}  \\ \:    \\ {?} =  \frac{20\pi \times 60}{360 }  =  \frac{\pi}{3}

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Write an equation of the line that passes through the point (3,2) and is
gulaghasi [49]

Answer:

y = 3x - 7

Step-by-step explanation:

Please let me know if you want me to write an explanation for my answer :)

4 0
2 years ago
if it takes 2 people 8 hours to decorate a room. How many people do I need to decorate 15 rooms in 24 hours?
miss Akunina [59]
6 people l guess l hope this helps
6 0
3 years ago
A random sample of 23 items is drawn from a population whose standard deviation is unknown. The sample mean isx⎯ ⎯ x¯ = 840 and
gayaneshka [121]

Answer:

(832.156, \ 847.844)

Step-by-step explanation:

Given data :

Sample standard deviation, s = 15

Sample mean, \overline x = 840

n = 23

a). 98% confidence interval

$\overline x \pm t_{(n-1, \alpha /2)}. \frac{s}{\sqrt{n}}$

$E= t_{( n-1, \alpha/2 )} \frac{s}{\sqrt n}}

$t_{(n-1 , \alpha/2)} \frac{s}{\sqrt n}$

$t_{(n-1, a\pha/2)}=t_{(22,0.01)} = 2.508$

∴ $E = 2.508 \times \frac{15}{\sqrt{23}}$

  $E = 7.844$

So, 98% CI is

$(\overline x - E, \overline x + E)$

(840-7.844 ,  \ 840+7.844)

(832.156, \ 847.844)

4 0
3 years ago
Solve for t<br><br> - 7/4 = 2/5 (t)<br><br> t=
Lena [83]
-7/4:-1.75
2/5:0.4
-1.75=0.4t
-1.75/0.4=t
-4.375=t

Hope I helped you well, have a victorious day!
4 0
3 years ago
Pls help I will mark brainlist
Marta_Voda [28]
We know they combine to 2,977 grams. The puppies weight the same
Let’s make puppy = x
Basket weight = 1,077
8x + 1077 = 2977
8x = 1900, x = 237.5 grams
It would be around 250 grams
6 0
2 years ago
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