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3 years ago

Angles in a triangle are 60, 85, and Y degrees what is the value of Y?

Mathematics

1 answer:

Oksi-84 [34.3K]3 years ago

4 0

Answer:

Y = 35 degrees

Step-by-step explanation:

The total degrees of a triangle always equal to 180. So here the question tells us the degree for 2 angles which is 60 and 85. From this, we can find the value of Y by subtracting: 180 - 60 - 85 = Y

35 = Y

Hope you understood, thanks for seeing my answer.

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Answer:

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Step-by-step explanation:

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3 years ago

In the past, the average age of employees of a large corporation has been 40 years. Recently, the company has been hiring older

earnstyle [38]

Answer:

Step-by-step explanation:

In the past, mean of age of employees

i.e. $\mu = 40$

Recently sample was taken

n = sample size = 60

Mean of sample = 45

Std dev of sample s = 16

$H_0: \bar x = 40\\H_a: \bar x >40$

(Right tailed test)

Since only population std deviation is known we can use t test only

Std error = $\frac{s}{\sqrt{n} } \\=\frac{16}{\sqrt{61} } \\=2.049$

Mean difference = 45-40 =5

Test statistic t= $\frac{5}{2.049} \\=2.441$

df = 60

p value =0.008739

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