It seems some part of the text is missing, however, since we are talking about 'crests' I guess we are talking about waves.
In a wave, the distance between two consecutive crests corresponds to the wavelength of the wave. Therefore, the distance measured with the ruler is the wavelength of the wave.
Answer:
a) Right, Has 1 Right Angle
b) Acute, All Angles Are Less Than 90
c) Obtuse, Has One Angle Larger Than 90
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
f(x)=x³-2x²
f(i)=(i)³-2(i)²=i²×i-2(-1)
=-1×i+2
=2-i
.............
Its 9.5 Also i like Trains 190 ÷ 21 = 9.5