Answer:
(2) (100, 300)
Step-by-step explanation:
One wave can be divided on 4 parts, as show on the picture.
Since a length of one whole wave equals 400, a length of each part is 
nanometers.
The height of the wave is decreasing on the second and on the third part, hence over the interval (100, 300).
Answer:
= and 
and 
Step-by-step explanation:
Absolute value -9 is 9, but there is a negative sign so it is -9
-9=-9
Greater than or equal to works because of the equal sign.
Less than or equal to also works because of the equal sign.
Answer: She will have to save for 8 weeks.
Step-by-step explanation:
164 = 52 + 8w
w = week
-52
112 = 8w
/8
14 = w
Cubic inch.
Proszę.
Myślę że pomoglem.
i think it is the last one
