# Find the amplitude of the function y = 3/2 cos(3x) + 1.

Find the amplitude of the function y = 3/2 cos(3x) + 1.

## This Post Has 4 Comments

1. Expert says:

step-by-step explanation:

b and c

2. Expert says:

It’s d for sure i just did also that’s why

3. Expert says:

d. corresponding side lengths in similar triangles are proportional in length.

step-by-step explanation:

4. Expert says:

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )
$Ineed as soon as possible ! what is the approximate length of the minor arc de$