Answer:
5.498 - C
Step-by-step explanation:
Length of an arc = tetha/360 × 2 × pi × r
Converting 7pi/4 to tetha
(7 × 180) / 4 = 315°, since pi = 180°
Plugging values to the formula:
315/360 × 2 × 3.142 × 1 = 5.498units
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B
Your dew point would be at 10.
2.3/6.7 = 4.6/x
using cross products
2.3*x = 6.7 * 4.6
divide by 2.3
x = 6.7 * 4.6 / 2.3
x = 6.7 * 2
x = 13.4
Choice A
