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Sedbober [7]
2 years ago
11

Help!! Best answer gets brainliest

Mathematics
1 answer:
Nimfa-mama [501]2 years ago
5 0
Use trigonometry and triangle congruency rules to find X
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A job candidate at a large job fair can be classified as unacceptable, provisional, or acceptable. Based on past experience, a h
svp [43]

Answer:

chisquare = 31.667

degree of freedom = 2

Step-by-step explanation:

Formula for chisquare test =  (O-E)²/E

total number observations= 60 + 25 + 15 = 100                  

Estimated E,

80% x 100 = 80

15%x100 = 15

5% x 100 = 5

chisquare =

\frac{(60-80)^{2} }{80} +\frac{(25-15)^{2} }{15}+\frac{(15-5)^{2} }{5}\\

= 5 + 6.67 + 20

= 31.667

from the calculation above the value of the chisquare statistic = 31.67

the degree of freedom is the number of samples in the test  n - 1

= 3-1

= 2

I have solve this question also in a tabular form to aid understanding in the file i uploaded.

thank you and good luck!

4 0
3 years ago
Please help me!! Lots of love!!
Marizza181 [45]

Answer:

D) 2

Step-by-step explanation:

write 8 in exponential form which is 2^3

now simplyfy the root which equals 2

2 is the answer.

4 0
2 years ago
Please answer with process
laila [671]

\mathsf{Given : a - b = 5}

\mathsf{Squaring\;on\;both\;sides,\;we\;get :}

\mathsf{\implies (a - b)^2 = 5^2}

\mathsf{\implies a^2 + b^2 - 2(a.b) = 25}

\mathsf{Given : a^2 + b^2 = 29}

\mathsf{\implies 29 - 2(a.b) = 25}

\mathsf{\implies 2(a.b) = 29 - 25}

\mathsf{\implies 2(a.b) = 4}

\mathsf{\implies (a.b) = 2}

6 0
3 years ago
A man covers 1000meters when he completes five rounds around a square field. what would be the length of the field?
Inessa05 [86]
200m i’m pretty sure
5 0
3 years ago
Read 2 more answers
For the number 683 and 2329 round each one to the nearest hundred
insens350 [35]
600 and 2300
hope i helped!
8 0
3 years ago
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