Answer:
56°
Step-by-step explanation:
The two marked angles are supplementary, so total 180°.
(2x +8) +(x -2) = 180
3x +6 = 180 . . . . . . . . . . collect terms
x + 2 = 60 . . . . . . . . . . . divide by 3
x = 58 . . . . . . . . . . . . . . subtract 2
∠DCB = x-2 = 58 -2
∠DCB = 56
Answer:
4th
Step-by-step explanation:
string length is 0.5m and the wavelengths are 0.25meters. This tells us there are two complete waves in the guitar string. This gives us a total of four antinodes; thus we are in the fourth harmonic.
Answer:
where are the patternes that are supposed to be shown?
Step-by-step explanation:
it says : Which pair of patterns below represents that of Edward and Juan?
but there are no patterns shown
Answer:
r = 100(
- 1 )
Step-by-step explanation:
Given
A = P(1 + 
) ← divide both sides by P
= 1 + ( subtract 1 from both sides )
- 1 = ( multiply both sides by 100 )
100 ( - 1) = r
