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Marta_Voda [28]
1 year ago
8

Can somebody help me please?

Mathematics
1 answer:
Nina [5.8K]1 year ago
7 0

Answer:

it's a that's the answer

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A clock has a face with a radius of 11.5 centimeters. What is the approximate circumference of the clock?
antiseptic1488 [7]
C = 2 pi r
C = 2 x 3.14 x 11.5
C = 72.22
answer is <span>
A. 72.22 cm</span>
6 0
2 years ago
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A random sample of 11 fields of rye has a mean yield of 20.1 bushels per acre and standard deviation of 7.66 bushels per acre. D
Lady bird [3.3K]

Answer:

17.1≤x≤23.1

Step-by-step explanation:

The formula for calculating the confidence interval is expressed as;

CI = x ± z*s/√n

x is the mean yield = 20.1

z is the 80% z-score = 1.282

s is the standard deviation = 7.66

n is the sample size =  11

Substitute

CI = 20.1 ± 1.282*7.66/√11

CI = 20.1 ± 1.282*7.66/3.3166

CI = 20.1 ± 1.282*2.3095

CI =  20.1 ±2.9609

CI = (20.1-2.9609, 20.1+2.9609)

CI = (17.139, 23.0609)

hence the required confidence interval to 1dp is 17.1≤x≤23.1

8 0
3 years ago
A group of 5 children and 5 adults are going to the zoo. Child tickets cost $6, and adult tickets cost $8. How much will the zoo
Lady_Fox [76]
(5 \ children \ * \$5)+(5 \ adults \ * \$8) = 5*5+5*8 = \$65
3 0
3 years ago
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What is 7m x 2n because I do not understand and would like some help
rusak2 [61]

Answer:

14mn

Step-by-step explanation:

5 0
3 years ago
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1.Define phase shift. Could every sine function be expressed as a phase shifted cosine function? Explain.
Ann [662]
A phase shift is defined as the a<span>mount of x by which sinusoid is shifted to the left or right.
 
And yes, </span><span>every sine function be expressed as a phase shifted cosine function:
</span>
sin(t)=cos(90-t)

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
4 0
2 years ago
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