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2 years ago

PLEASE HELP LAW OF COSINES

Mathematics

2 answers:

RoseWind [281]2 years ago

8 0

Answer:

34 degrees

Step-by-step explanation:

edg quiz

chubhunter [2.5K]2 years ago

7 0

The Law of Cosine states
cos $C=(a^2+b^2-c^2)/2ab$

so plugging in the numbers gives us

cos $J=(13^2+19^2-11^2)/2(13*19) = 409/494$

We now have cosJ so plug that into your calculator and find arccos (arccos(cos(J)) = J)
arccos $(409/494)=34.11$
rounding your answer will give you 34°

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svp [43]

The answer is A. 21.6 just add, 9.2+0.5+6+5.9=21.6

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3 years ago

Read 2 more answers

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jarptica [38.1K]

Answer:

4 is b which is equivalent to 4\5

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2 years ago

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Evgesh-ka [11]

Answer:

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Step-by-step explanation:

Check the rate of change in the f(x) column.

The first 3 have linear change (arithmetic sequence) and the last one has different pattern.

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3 years ago

A rabbit population doubles every 4 weeks.There are currently five rabbits in a restricted area. If t represents the time in wee

sertanlavr [38]

Doubling formula is this:

$P(t)=P(2)^{\frac{t}{d}}$
where P=initial number of rabbits
t=time
d=time it takes to doulbe

ok, so 4 weeks is the doubling time so that is 4*7=28 days

we wawnt time=98
and oroiginal number of rabbits is 5 so
$P(98)=5(2)^{\frac{98}{28}}$
$P(98)=5(2)^{3.5}$
$P(98)=5(2^3)(\sqrt{2})$
$P(98)=5(8)\sqrt{2}$
$P(98)=40\sqrt{2}$
so P(98)≈56.56
we can't have .56 rabbit so round down or up
about 56 or 57 rabbits in 98 days

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3 years ago

Please need help on this

zimovet [89]

Answer:

7047, people/km^2

Step-by-step explanation:

To find the answer, you would need to divide the numbers 8550405(people) and 1213.4(kilometers) <--- which where this came from.

Once you divide those numbers, you will directly get the number 7047 as your answer.

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3 years ago