A = 1,052 + 1.087 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).
Which of the following expresses the air temperature
in terms of the speed of a sound wave?
A)
a- 1,052
1.08
B)
a + 1,052
1.08
C)
1,052-a
1.08
D) -
1.08
a + 1,052

step-by-step explanation:

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!