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nekit [7.7K]
3 years ago
13

13. In the right triangle depicted below, what is the cosine of angle B?

Mathematics
1 answer:
Anastasy [175]3 years ago
8 0

Answer:

number c

Step-by-step explanation:

.............. just for filling 20 characters

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In an effort to determine the most effective way to teach safety principles to a group of employees, four different methods were
musickatia [10]

Answer:

critical value = 5.29

Step-by-step explanation:

Given that they are divided into 4 groups and a sample of 5 test was selected

N = 5 * 4 = 20

k = 4

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Df for numerator ( SS group )= k - 1 = 3

Df for denominator ( SSE group )  = N - k = 20 - 4 = 16

DF ( degree of freedom )

Next we will use the F table to determine the critical value

Critical value =   F_{16,3,0.01} = 5.29

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3 years ago
Type the dimensions of a different shaped box that has the same volume
defon

Step-by-step explanation:

120ft³ = 3ft × 4ft × 10ft

120ft³ = 1ft × 1ft × 120ft

120ft³ = 2ft × 2ft × 30ft

120ft³ = 5ft × 3ft × 8ft

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Taking fractions or mixed numbers as dimensions, you can give infinitely many such shapes with a volume of 120ft³.

7 0
3 years ago
3.26 round to the nearest tenth
zaharov [31]
It's 3.3 because the 2 is in the tenths place and you look at 6 and say is it over 5? Yes it is so the next number after 2 is 3 so your answer is 3.3
7 0
4 years ago
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A parallel line has the same gradient

First you will need to rearrange the equation 10x+2y=-2

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3 years ago
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Which of the following has a solution set of {x | x = 0}?
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Middle option.

<span>(x + 1 ≤ 1) ∩ (x + 1 ≥ 1)

If you work both sides separately you get

</span>(x  ≤ 0) ∩ (x ≥ 0)
<span>
which reduces nicely to 

</span><span>{x | x = 0}</span>
3 0
3 years ago
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