Hey there,
Your correct answer would be "wavelength". That indicates how long the wave's are. There is a illustration below to explain.
A.) would be your correct answer.
Hope this helps.
~Jurgen
Answer:
1) Triangles
≈
2)

3) Triangles
≈
Step-by-step explanation:
Hope that helps :D
<u><em>-Jazz</em></u>
Answer:
x=3
Step-by-step explanation:
3x=y y=9
fill y in with 9
3x=9
÷3 ÷3
x=3
For the above figure, the formula is,
x² = WY (YV + WY)
WY = 5
YV = 12
Substituting in the above formula,
x² = 5 x (12 + 5)
x² = 5 x 17 = 85
x² = 85
⇒ x = √85 = 9.21954 = 9.220