Answer:..
Step-by-step explanation:
...
If 
, then 
and 
because 
lies in the fourth quadrant.
By DeMoivre's theorem,
so the answer is B.
Answer:
y
=
3
2
x
+
1
Explanation:
To find the slope
(
m
)
of the straight line that passes through two points
(
x
1
,
y
1
)
and
(
x
2
,
y
2
)
apply:
(
y
1
−
y
2
)
=
m
(
x
1
−
x
2
)
In this example our two points are
(
0
,
1
)
and
(
2
,
4
)
Hence:
(
1
−
4
)
=
m
(
0
−
2
)
−
3
=
−
2
m
→
m
=
3
2
The equation of a straight line in slope
(
m
)
and intercept
(
c
)
form is:
y
=
m
x
+
c
In this example:
y
=
3
2
x
+
c
Since the point
(
0
,
1
)
is on this line
→
1
=
0
+
c
Hence,
c
=
1
∴
y
=
3
2
x
+
1
is our required straight line.
Step-by-step explanation:
Answer:
a) parallel lines
Step-by-step explanation:
I'm not sure
Answer: 5F < 5( X + x )
Step-by-step explanation:
Let each finger = F and
The index finger = X
The shortest index finger = x
the combined length of all 5 of her fingers on one hand should be less than 5 times the length of index finger
From the statement above, we get
5F < 5X
Tessa add the second shortest index finger.
That is
5F < 5( X +x)
