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castortr0y [4]
3 years ago
13

Find the measure of angle y. Round your answer to the nearest hundredth. (please type the numerical answer only)

Mathematics
1 answer:
Iteru [2.4K]3 years ago
5 0

Answer:

Step-by-step explanation:

cos(y°) = 8/13

y°  = arccos(8/13) ≅ 50°

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the population in a town is 10,000. The population is growing at a rate of 0.08. what will the population be in 10 years
cestrela7 [59]

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7 0
2 years ago
Find a 75% confidence interval for the population average weight μ of all adult mountain lions in the specified region. (Round y
kupik [55]

Answer:

75% confidence interval is 91.8±16.66. That is between 75.1 and 108.5 pounds.

Step-by-step explanation:

The question is missing. It is as follows:

Adult wild mountain lions (18 months or older) captured and released for the first time in the San Andres Mountains had the following weights (pounds): 69  104  125  129  60  64

Assume that the population of x values has an approximately normal distribution.

Find a 75% confidence interval for the population average weight μ of all adult mountain lions in the specified region. (Round your answers to one decimal place.)

75% Confidence Interval can be calculated using M±ME where

  • M is the sample mean weight of the wild mountain lions (\frac{69 +104 +125 +129+60 +64}{6} =91.8)
  • ME is the margin of error of the mean

And margin of error (ME) of the mean can be calculated using the formula

ME=\frac{t*s}{\sqrt{N} } where

  • t is the corresponding statistic in the 75% confidence level and 5 degrees of freedom (1.30)
  • s is the standard deviation of the sample(31.4)
  • N is the sample size (6)

Thus, ME=\frac{1.30*31.4}{\sqrt{6} } ≈16.66

Then 75% confidence interval is 91.8±16.66. That is between 75.1 and 108.5

3 0
3 years ago
Help me resolve this 3.25 × 6.5 =​
Alexeev081 [22]

The answer is:

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8 0
3 years ago
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stepan [7]

Answer:

7.5 flour bag

Step-by-step explanation:

we are given

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we have to find

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1 dozen cookies needed flour=3/4

and for 10 dozen cookies

we will multiply 10 on both sides

it will give

10 dozen cookies needed flour bags=(3/4)*10=30/4=15/2=7.5

6 0
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Free_Kalibri [48]
Proportion: 4/12=x/10
Answer: x=3 1/3
3 0
3 years ago
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