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Paladinen [302]
3 years ago
15

Yesterday morning at 8 a.m. the temperature was -14˚F. At noon it was 10 degrees warmer. The temperature increase between noon a

nd and 4 p.m. was twice the temperature increase between 8 a.m. and noon. What was the temperature at 4 p.m?
Mathematics
2 answers:
jasenka [17]3 years ago
8 0

8am : -14F

noon : -14+10  = -4F

increase between noon and 4 is 2*10 =20

4 pm: -4F + 20 = 16F

temperature at 4 pm is 16F

Scrat [10]3 years ago
6 0

The temp at 4 pm is 16°F .

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Sticking to either cosine or sine might help simplify the calculation. By the Pythagorean Theorem, \sin^{2}{x} = 1 - \cos^{2}{x}. Therefore, for the square of tangents,

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