Answer: Thats very nice :)
Answer:
(
5
,
π
)
Step-by-step explanation:
−
5
=
r
cos
θ
88
[
1
]
0
=
r
sin
θ
8888
[
2
]
Squaring [1] and [2]:
25
=
r
2
cos
2
θ
0
=
r
2
sin
2
θ
Adding [1] and [2]:
25
=
r
2
cos
2
θ
+
r
2
sin
2
θ
Factor:
25
=
r
2
(
cos
2
θ
+
sin
2
θ
)
25
=
r
2
⇒
r
=
±
5
( use
r
=
5
)
The fee is described as 0.45×$32,400/12 = $1215.
Answer:
a.
b.
Step-by-step explanation:
We are given that
Speed of red bike, v=24 km/h
Speed of blue bike, v'=12km/h
Distance of red bike when t=0
=10 km north
Distance of blue bike when t=0
=6km east
a. We have to find the expression of distance of red bike from Lawrence.

Let t be the time taken by red bike
Distance of red bike from Lawrence is given by


b.
Distance of the blue bike from Lawrence


Answer:
Equation A is factoring, x=9 and x=0
Equation B is the square root, x=3