Visualize pi/2 as 90° on the unit circle. this has no real component, only imaginary. same for 3pi/2, or -pi/2 as shown in this equation:

as you move around the unit circle, you'll find that 9pi/2 is the same angle as pi/2.
Thus, the rectangular coordinates are:
Answer:
9
Step-by-step explanation:
let the number
=
x
then 4 times the number
=
4
x
and 4 times the number increased by 15
=
4
x
+
15
also 6 times the number
=
6
x
and 3 less than 6 times the number
=
6
x
−
3
equating the two expressions gives the equation
4
x
+
15
=
6
x
−
3
←
solve for x
subtract 6x from both sides
4
x
−
6
x
+
15
=
6
x
−
6
x
−
3
⇒
−
2
x
+
15
=
−
3
subtract 15 from both sides
−
2
x
+
15
−
15
=
−
3
−
15
⇒
−
2
x
=
−
18
divide both sides by
−
2
−
2
x
−
2
=
−
18
−
2
⇒
x
=
9
As a check
(
4
×
9
)
+
15
=
36
+
15
=
51
(
6
×
9
)
−
3
=
54
−
3
=
51
⇒
the number is 9
Answer:can you give me more information
Step-by-step explanation:
Answer:
1/5 or A
Step-by-step explanation:
Hello. Please excuse the idiot above we do not know how he formed or why he speaks like a gorilla on crack. Anyways, we, humans, believe that 1/5 is the correct answer since their are 5 intervals between 0 and 1 between one of the tick marks is 1/5 since there are 5 intervals. I really hope you guys are human not this gorilla above us. I hope I made your day please rate 5 stars , add thanks and please mark brainliest. :)
Answer: Your answer is A!
Step-by-step explanation: