Reason
1. Given
2. Segment Addition Postulate
3. Add BC on the both sides
Answer:
5 weeks
Step-by-step explanation:
because my teacher told me
A translation formation is one of the simplest transformation since
all it does is just to move the position of the figure without changing the
size, the angles, or any other characteristics other than the position along.
So a translation by a vector (-2, 4) means that all points of the
given figure is moved by:
(x – 2, y + 4)
Meaning that the whole figure is moved to the left by 2 units and
moved to top by 4 units
So to revert this back into the original figure, we simply have to
move again by:
(x + 2, y – 4)
Therefore move the whole figure to the right by 2 units and to the
bottom by 4 units. So the translation to use is a vector (2, -4)
Answer:
(2, -4)
Answer:
If a car with a blowing horn is moving toward you, the pitch sounds higher than the actual emitted frequency.
Step-by-step explanation:
In figure,
V= speed of wave
U= speed of car
When car moving towards you, then
Car travels a distance in time T = VT
Wave travels a distance in time T = UT
From figure,
change in wavelength (λ') = VT - UT= T(V-U)
Now,
V = λ' f' (f' →frequency observed by you)
f' = V ÷ λ' = 
We know that
= f
Then,
f' = 
f' = 
Hence, we can say that
frequency increases as source moves toward you.
Answer:
x² +14x +49
Step-by-step explanation:
Use the distributive property and collect terms.
(x +7)² = (x +7)(x +7)
= x(x +7) +7(x +7)
= x² +7x +7x +49
= x² +14x +49