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Alona [7]
3 years ago
6

Find the perimeter of this sector. Give your answer in terms of

tle="\pi" alt="\pi" align="absmiddle" class="latex-formula">

Mathematics
1 answer:
JulsSmile [24]3 years ago
3 0

Answer:

Perimeter = 24 +  8π /3 m.

Step-by-step explanation:

Arc length = rC  where r = radius and C = angle in radians.

40 degrees = 40 π / 180

= 2π /9 radians.

Arc length = 12 * 2π /9

= 8π /3 m.

Perimeter of the sector = 2*12 + 8π /3

= 24 +  8π /3 m.

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What is the lenght of PQ<br> P is 2,1<br> Q is 5,6
Elodia [21]

Answer:

7,7

Step-by-step explanation:

Possibly 7,7 becuase p+q=pq, therefor 2,1+5,6=7,7

4 0
3 years ago
Find the value of<br> 10!<br> (10-3)<br> A. 70<br> B. 120<br> O C. 5040<br> O D. 720
GarryVolchara [31]

Answer:

The answer is option D.

Step-by-step explanation:

\frac{10!}{(10 - 3) ! }  =  \frac{10!}{7!}  =  \frac{3628800}{5040}  = 720

Hope this helps you

8 0
3 years ago
Please help!
aev [14]

Answer:

c

Step-by-step explanation:

cvvvbbnh

5 0
3 years ago
A random sample of 11 nursing students from Group 1 resulted in a mean score of 41.3 with a standard deviation of 6.8. A random
Lina20 [59]

Answer:

At 1% significance level,  this difference is considered to be extremely statistically significant.

Step-by-step explanation:

 Group   Group One     Group Two  

Mean 41.300 54.800

SD 6.800 6.000

SEM 2.050 1.604

N 11      14      

H0: Mean of group I = Mean of group II

Ha: Mean of group I < mean of group II

(Left tailed test at 1% significance level)

  The mean of Group One minus Group Two equals -13.500

 standard error of difference = 2.563

 t = 5.2681

 df = 23

 p value= 0.00005

Since p < significance level, reject H0

6 0
3 years ago
Where would you place root 8 on the Venn diagram? A) integers B) natural numbers C) rational numbers D) irrational numbers
tangare [24]

Answer:

Option (D)

Step-by-step explanation:

All rational and irrational numbers are real numbers.

{-2, -1, -1.8, 0, 1, 2.......}

Numbers written in the form of \frac{p}{q} are rational numbers. They are the part of irrational numbers.

{-2.5, -2, -1, 0, 1, 2.....}

Whole numbers with negative or positive notation are integers.

{-3, -2, -1, 0, 1, 2, 3, 4......}

Positive integers are the whole numbers (including zero).

{0, 1, 2, 3, 4, .......}

All whole numbers excluding zero are the natural numbers.

{1, 2, 3, 4,........}

Irrational numbers are the part of real numbers written in the form of \frac{p}{q}.

{\sqrt{2},\sqrt{5},\pi, \sqrt{10}}

Therefore, \sqrt{8} comes under Irrational numbers.

Option (D) is the answer.

7 0
3 years ago
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