The answers are
1) ∠A = 53
°
2) ∠D = 127°
3) x = 5
4) AB = 7
<u>Step-by-step explanation</u>:
In parallelogram,
- Consecutive angles are supplementary (∠A + ∠B = 180°).
- Opposite angels are congruent (∠D = ∠B).
- Opposite sides are congruent (AB = DC).
1) find angle A :
Given, ∠B = 127°
∠A + ∠B = 180°
∠A = 180-127= 53
°
2) find angle D :
Given, ∠B = 127°
∠D = ∠B
∠D = 127°
3) find x :
AB = DC
(x+2) = (2x-3)
2+3 = 2x-x
x = 5
4) find AB
:
AB = (x+2)
AB = 5+2
AB = 7
The M is slope and B is the y-int.
So the B would be +2.5
we can use
sound level formula
where
is the sound level for a noise
I is intensity given
I0 is reference intensity
we know that reference intensity as
we are given
now, we can plug these values
and we get
now, we can simplify it
................Answer
Answer:
C
Step-by-step explanation:
Hello There!
The height of the water starts at 3 feet and its receding at a rate of .75 feet an hour
receding means to move farther away from previous position
so the equation would be
3-.75t
or
-.75t + 3
So we can conclude that the answer is C