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Masteriza [31]
3 years ago
10

Make COS the subject of the formula

Mathematics
1 answer:
docker41 [41]3 years ago
6 0

c^2 = a^2 + b^2 - 2(ab)(cos C)

c^2 + 2(ab)(cos C) = a^2 + b^2

2(ab)(cos C) = a^2 + b^2 - c^2

cos C = (a^2 + b^2 - c^2) / 2ab - Answer choice E

Hope this helps! :)

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7 0
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C = k - 273.15 (a) Write two other related equations . (b) If the temperature is 23 in degrees Celsius , what is the temperature
Alona [7]

Answer:

(a) k = C + 273.15, F = 1.8(k - 273.15) + 32

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Step-by-step explanation:

(a) one equation would be to solve for k instead of c, and another related equation could be from kelvin to Farenheit.

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(b) for this one you have to substitute in the previous equation and solve for k.

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(c) you have to convert either kelvins to celcius or celcius to kelvins.

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5 0
3 years ago
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