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3 years ago

Find the value of Angle A and B!! WILL MARK BRAINLIEST

Mathematics

1 answer:

elixir [45]3 years ago

8 0

Answer:

a is 55

b is 125

Step-by-step explanation:

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BlackZzzverrR [31]

Answer:

Step-by-step explanation:

The top one is the third one the bottom one is the first one

6 0

3 years ago

Rent and other associated housing costs, such as utilities, are an important part of the estimated costs of attendance at colleg

zhenek [66]

Answer:

96% confidence interval estimate for the mean monthly rent of all unmarried BYU students in winter 2018 is [335.89 , 356.10].

Step-by-step explanation:

We are given that a group of researchers at the BYU Off-Campus Housing department want to estimate the mean monthly rent that unmarried BYU students paid during winter 2018.

During March 2018, they randomly sampled 314 BYU students and found that on average, students paid $346 for rent with a standard deviation of $86.

So, the pivotal quantity for 95% confidence interval for the average age is given by;

P.Q. = $\frac{\bar X - \mu}{\frac{s}{\sqrt{n} } }$ ~ $t_n_-_1$

where, $\bar X$ = average rent paid by 314 BYU students = $346

s = sample standard deviation = $86

n = sample of students = 314

$\mu$ = population mean monthly rent of all unmarried BYU students

So, 96% confidence interval for the population mean monthly rent, $\mu$ is ;

P(-2.082 < $t_3_1_3$ < 2.082) = 0.96

P(-2.082 < $\frac{\bar X - \mu}{\frac{s}{\sqrt{n} } }$ < 2.082) = 0.96

P( $-2.082 \times {\frac{s}{\sqrt{n} } }$ < ${\bar X - \mu}$ < $2.082 \times {\frac{s}{\sqrt{n} } }$ ) = 0.96

P( $\bar X -2.082 \times {\frac{s}{\sqrt{n} } }$ < $\mu$ < $\bar X +2.082 \times {\frac{s}{\sqrt{n} } }$ ) = 0.96

96% confidence interval for $\mu$ = [ $\bar X -2.082 \times {\frac{s}{\sqrt{n} } }$ , $\bar X +2.082 \times {\frac{s}{\sqrt{n} } }$ ]

= [ $346 -2.082 \times {\frac{86}{\sqrt{314} } }$ , $346 +2.082 \times {\frac{86}{\sqrt{314} } }$ ]

= [335.89 , 356.10]

Therefore, 96% confidence interval estimate for the mean monthly rent of all unmarried BYU students in winter 2018 is [335.89 , 356.10].

5 0

4 years ago

3. In 2014, a small town had a population of 27,000 people. Since 2014, the town

WITCHER [35]

Answer:

38,340

Step-by-step explanation:

you take 6% of 27000 and multiply it by 7 years and then add the original 27,000

7 0

3 years ago

Read 2 more answers

Hannah is putting the fruit she bought intervals. She bought eight melons, 12 pairs, and 24 apples. She puts the same number of

BlackZzzverrR [31]

Hannah has to put 4 pieces in each bowl.

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3 years ago

A family of four is trying to determine what they want to do for their summer vacation and came up with three options. They have

Nikolay [14]

Option 1 =$497.5 option 2 =$494.5 option 3 =$50.5

8 0

4 years ago