4 years ago

If in triangle ABC, a=5, b=6 and c=8, then cos A is...

1 answer:

s2008m [1.1K]4 years ago

5 0

In a triangle, the nomenclature is that a variable side a is opposite of the angle A. we can use the cosine law to determine the value of cosine A.
a2 = b2 + c2 -2bc cos a25 = 36 + 64 - 2*6*8 * cos acos a = 25/32

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are the expressions 3(m - 2) + 2( m - 2) and 5(m-2) equivatalent expressions explain in two or more sentences

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3 years ago

In how many ways can you write 3:4 as a fraction

Pie

3/4 as a fraction to 9/12

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3 years ago

Two friends, Darren and Michael, together earn $30 more than twice what Brian earns per month. If Darren and Michael together ea

kumpel [21]

Lets assign some variables: Let
y = Darren + Michael
x = Brian.
Given:
y = 2x + 30 (Darren and Michael [y] earn [=] 30 more than[+30] twice what Brian earns[2x])
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3 years ago

MULTIPLE CHOICE QUESTION

Zanzabum

Answer:

8/25, 38%, 0.41

Step-by-step explanation:

change them all to percentages

32, 38, and 41

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2 years ago