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Effectus [21]
3 years ago
13

Please help thanks !

Mathematics
1 answer:
Kitty [74]3 years ago
7 0

Answer:

option D

Step-by-step explanation:

x^{2} + y^{2} = 16\\\\x^{2} = 16- y^{2}

equation 2:

\frac{x^{2}}{4} - \frac{y^{2}}{25} = 1

so we have:

\frac{16- y^{2} }{4}-\frac{y^{2}}{25}= 1

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A newspaper reported that 4040​% of people say that some coffee shops are overpriced. The source of this information was a telep
vampirchik [111]

Answer:

a. Identify the population of interest in this study.

  • all the population of the country

b. Identify the sample for the study.

  • 50 adults (the ones that were surveyed)

c. Identify the parameter of interest in the study.

  • the parameter of interest is the people that believe that coffee shops are overpriced

d. Find and interpret a 95​% confidence interval for the parameter of interest.

z score for a 95% confidence level = 1.96

margin of error (E) = z score x √{[0.4(1 - 0.4)] / 50} = 1.96 x 0.069282 = 0.13579

95% confidence level interval:

0.4 - 0.13579 = 0.26421

0.4 + 0.13579 = 0.53579

  • 95% confidence interval (0.26421 , 0.53579)

5 0
3 years ago
98 POINTS AND BRAINLIEST ANSWER!!!
VladimirAG [237]

(6^2) + (4^2)

36 + 16

2

Choice C

8 0
2 years ago
Read 2 more answers
Carlos tried to find a fraction equivalent to 2/3. Below is his work. Which
Sliva [168]

Answer:

He did not multiply 2/3 by a fraction equal to 1.

Step-by-step explanation:

For example he could have multiplied 2/3 by 4/4

= 2*4/3*4 = 8/12,

8 0
2 years ago
Will mark as Brainiest answer if you help ASAP!
spayn [35]
Vertex is (x+5)^2+12 and minimum value of f(x) is 12 
Hope this helps 
6 0
3 years ago
How much did Gloria make per hour if she worked 6 hours for for 2 days and made 114.24
Anna35 [415]

9.52 per hour for 6 hours 2 days. there is a total of 12 hours in total so divide 114.24 by 12 to get 9.52.

5 0
2 years ago
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