Answer:
m<7=65
m<4 = 115
m<6 = 115
m<1=65
m<16 = 60
m<18 = 60
m<21 = 120
m<10 = 55
m<11 = 125
m<12 = 55
Step-by-step explanation:
(1) m<7 = 65° (corresponding angles are equal)
(2) m<4 = 180 - 65 = 115 (angles on a straight line)
(3) m<6 = 115 (angles on a straight line)
(4) m<1 = 180-115 = 65
(5) m<16 = 180 - 120 = 60°
(6) m<18 = m<14 = 60°(corresponding angles are equal)
(7) m<21 = 180 - 60 = 120
(8) m<10 = m<12 = 180-(65+60)=55(sum of angles in a triangle)
m<10 = 55°
(9) m<11 = 180 - 55 = 125°
(10)m<12 = 55°(sum of angles in a triangle)
Answer:
Look at the equations:
y
=
−
9
x
−
21
and
y
=
5
x
+
7
Because both equations equal (y), they both equal the same.
If an equations says "
y
=
−
9
x
−
21
" , that means we can replace (y) with
−
9
x
−
21
.
Therefore when i take the equation:
y
=
5
x
+
7
, we can replace (y) to get:
−
9
x
−
21
=
5
x
+
7
Now isolate (x):
−
9
x
−
21
=
5
x
+
7
⇔
−
21
=
14
x
+
7
⇔
−
28
=
14
x
⇔
x
=
−
2
Answer:
2.15cm^3
Step-by-step explanation:
V = Mass / Density
21.93g / 10.2g/cm^3
2.15cm^3
Two points of the slope y=(2x+2) - 3 are (-1,0), (0,1)