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SVETLANKA909090 [29]
2 years ago
11

Dr. peterson works 178 hours each month.how many hours dose she work each year?

Mathematics
1 answer:
SSSSS [86.1K]2 years ago
3 0

Answer:

2,136

Step-by-step explanation:

Okay so, Dr. Peterson works 178 hours per month

You multiply 178 times 12 (the months in a year)

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AysviL [449]

Answer:

1/4

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Step-by-step explanation:

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. Given that O is the centre of the following circle, find the values of the unknowns.​
alex41 [277]

Given:

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Height of triangle is 5 cm

To find:

Value of 'a' and 'b'

Steps:

To find value of 'a', we will use Pythagoras theorem as the triangle is a right angle triangle,

A² + B² = C²

a^{2} + 5^{2} = 13^{2}

a^{2} + 25 = 169

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\sqrt{a^{2}}=\sqrt{144}

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Now to find the value of 'b', i will use law of cosine,

c=\sqrt{a^{2}+b^{2}-2ab(cos\beta ) }

12 = \sqrt{13^{2}+5^{2}-2(5)(13)(cos\beta )}\\12=\sqrt{169 + 25-130(cos\beta )}\\12=\sqrt{194-130(cos\beta )}\\144 = 194 - 130(cos\beta )\\50 = 130(cos\beta )\\cos\beta =   0.3846\\\beta  = cos^{-1}(0.3846)\\\beta = 67.38

Therefore, the values of 'a' and 'b' is 12 and 67.38 respectively

Happy to help :)

If u need any help feel free to ask

3 0
3 years ago
What edge is skew to edge FG?
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The edge represented by EA is the edge skewed to edge FG. Skew lines are non-intersecting lines in space. These lines are neither parallel nor they form right angles.
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Samantha was scanning photos she was scanned 123 but still has 296 left to scan how many pictures did she star with define a var
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Answer:

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2 years ago
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