Mathematics, 20.02.2021 21:10 rivman10

Does anyone know what this is ?

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Answer from: lilquongohard

9514 1404 393

x = 2

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the relations between trig functions and angle.

Tan = Opposite/Adjacent

tan(θ) = y/x

Sin = Opposite/Hypotenuse

sin(θ) = y/4

The given relation is ...

tan(θ) = 2·sin(θ)

y/x = 2(y/4)

2 = x . . . . . . . multiply by (2x/y)

Additional comment

Then the angle can be found from the relation ...

Cos = Adjacent/Hypotenuse

cos(θ) = x/4 = 2/4 = 1/2

θ = arccos(1/2) = 60°

and the value of y is ...

y = 4·sin(60°) = 2√3

Answer from: Quest

step-by-step explanation:

goog be able to you with that maybe

Answer from: Quest

"it's not the heat, it's the humidity". that's a partly valid phrase you may have heard in the summer, but it's actually both. the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature. this has important considerations for the human body's comfort. when the body gets too hot, it begins to perspire or sweat to cool itself off. if the perspiration is not able to evaporate, the body cannot regulate its temperature. evaporation is a cooling process. when perspiration is evaporated off the body, it effectively reduces the body's temperature. when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases. in other words, the human body feels warmer in humid conditions. the opposite is true when the relative humidity decreases because the rate of perspiration increases. the body actually feels cooler in arid conditions. there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation:

75% of the temperatures are below what value? how do you know? 75% of the temperatures are above w

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