The missing angle is 25. A triangle is always equal to 180° so you would subtract your know angles from 180 to find the missing angle
75+80+x=180 would be the equation
We can write it down as a fraction:
and we can simplify this fraction:
=
=
=
or we can write it as a decimal:
0.1282...
Answer:
Answer:
835.29 Hz
Explanation:
When moving towards the source of sound, frequency will be given by
f*=f(vd+v)/v
Where f is the freqiency of the source, vd is the driving speed, v is the speed of sound in air, f* is the inkown frequency when moving forward.
Substituting 800 Hz for f, 340 m/s for v and 15 m/s for vd then
f*=800(15+340)/340=835.29411764704 Hz
Rounded off, the frequency is approximately 835.29 Hz
ı hope ıts true
Step-by-step explanation:
-(1)x + 5 = 10
-5 -5
----------------
-x = 5
+1 +1
----------
x = 6
Answer:
See below.
Step-by-step explanation:
No. Triangles Perimeter
1 14
2 18
3 22
We see from the table, after the first perimeter (= 14), with each increase of 1 in the number of triangles, the perimeter increases by 4.
As an equation it is P = 14 + 4(n - 1) where P = perimeter and n = number of triangles.
