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SAT practice question

a= 1,052 + 1.08t

The speed of a sound wave in air depends on the air

temperature. The formula above shows the relationship

between:  a, the speed of a sound wave, in feet per second,

and t, the air temperature, in degrees Fahrenheit (°F).

At which of the following air temperatures will the

speed of a sound wave be closest to 1,000 feet per

second?

 

A) −46°F

B) −48°F

C) −49°F

D) −50°F

 

 

 

Answer: B

Random Fact of the week

Chimpanzees can identify each other from pictures of their butts.

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