Answer:
hey:)
for #13:
x= 180-144= 36°
#14:
x= 180-35= 145°
#15:
x= 180-116= 64°
#16:
x= 180-105= 75°
I hope this was helpful:)
Answer:
Cone
Step-by-step explanation:
Rotation means the circular moment of an object about some axis or center.
In the given figure, the shape is rotated along the dashed line.
The size of the object remains same after rotation.
After rotating about the dashed line, we observe that the object formed is three- dimensional and is in the shape of a cone.
V= L*w*h
21.322.132= 3434*1212*h
h= 21.322.132/3.434* 1212 = 5.330.533/1.040.502
h ≈5,123 inch
Compare the given equation with the general equation of a circle
Given equation: x² + y² - 8x +6y +9 = 0
Equation of a circle: x² + y² + 2gx + 2fy + c = 0
2g= -8; g = -8÷2= -4
2f = 6; f = 6÷2 = 3
c= 9
Solving for radius of the circle...
r =√g² + f² - c
g= -4, g² = ±16
f = 3, f² = 9
Substituting, we have
r = √16 + 9 - 9
r = √25-9
r=√16
r = 4
Therefore, the centre and radius of the circle is 9 and 4 respectively.
Hope this helped!
Please mark brainliest;-)
The answer will be the choice number will be the first one 3x+4=-2x-1