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masha68 [24]
3 years ago
11

I NEED HELP ASAP!!!!

Mathematics
1 answer:
Gennadij [26K]3 years ago
4 0

Answer:

It's be B

Step-by-step explanation:

The equation for arc length is 2piR (angle/360)

Plug in your numbers to get the equation 2pi16km (150/360)

Click enter into the calculator you get 41.887km which rounds to 41.9km

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A hypothesis test is conducted at the 5 percent level of significance to test whether the population correlation is zero. If the
Nonamiya [84]

Answer:

Which is the output of the formula =AND(12>6;6>3;3>9)?

A.

TRUE

B.

FALSE

C.

12

D.

9

Step-by-step explanation:

5 0
3 years ago
How to calculate standard deviation sample?
Harman [31]
Formula for standard deviation sample calculation is:
SD = sqrt (( ∑( x - m)²) / ( n - 1 )),
where x stays for each value in the data set, m stays for mean of all values in the data set, and n stays for the number of values in the data set.
For example: Find the sample standard deviation for the set of numbers: 10, 11, 11, 12, 12.
First we will find mean of all avlues: m = ( 10 + 11 + 11 + 12 +12 ) / 5 = 11.2
SD = sqrt (( 1.2² + 0.2² + 0.2² + 0.8² + 0.8² ) / ( 5 - 1 ))=
= sqrt ( 2.8 / 4 ) = √0.7 = 0.837
7 0
4 years ago
Where will her cut be located? Round to the nearest tenth. x = (StartFraction m Over m + n EndFraction) (x 2 minus x 1) + x 1 A
Arte-miy333 [17]

Answer:

The correct answer is 25.2 in.

Step-by-step explanation:

It is given that number line goes from 0 to 60 which can be used to represent a ribbon of length = 60 inches.

2 inches of the ribbon are frayed so actual length = 58 inches

Please refer to the attached image for the ribbon.

A is at 0

C is at 60

B is at 2

P is the point to divide the remaining ribbon in the ratio 2:3.

Part AB of the ribbon is frayed.

BP: PC = 2:3

Let BP = 2x and PC = 3x

Now, BP + PC = BC = 58 = 2x + 3x = 5x

So,

5x =58\\\Rightarrow x =11.6

BP = 2\times x = 2 \times 11.6 = 23.2\ inches

Location of the Cut = 2 + 23.2 = <em>25.2 inches</em>

<em></em>

Alternatively, we can use the formula directly:

x = \dfrac{m} {m + n } (x_2 - x_1) + x_1

x_1 = 2\\x_2 = 60

m: n is the ratio 2:3

x = \dfrac{2} {2 +3 } (60- 2) + 2\\\Rightarrow 0.4 (58 )+2\\\Rightarrow 23.2+2 \\\Rightarrow \bold{25.2\ inches}

5 0
4 years ago
Read 2 more answers
√25- a + √9-a=? <br> If √25-a - √9-a=2
DIA [1.3K]

Answer:

8

Step-by-step explanation:

8 0
3 years ago
Con respecto al ejercicio anterior, ¿Cuál es la velocidad del ratón respecto a Tom?
Tasya [4]

Answer:

Esta pregunta no es de la lección.

Step-by-step explanation:

4 0
3 years ago
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