There are 63 students in the room, this is because 21 time 3 gives you 63.
Answer:
The relation between polar and Cartesian coordinates are
r2=x2+y2
tan
θ
=
y
x
,
x
=
r
cos
θ
,
y
=
r
sin
θ
r
=
8
sin
θ
∴
r
⋅
r
=
r
⋅
8
sin
θ
or
r
2
=
8
r
sin
θ
∴
x
2
+
y
2
=
8
y
or
x
2
+
y
2
−
8
y
=
0
or
x
2
+
y
2
−
8
y
+
16
=
16
or
x
2
+
(
y
−
4
)
2
=
4
2
Rectangular form is
x2+(y-4)2=42
graph{x^2+(y-4)^2=16 [-20, 20, -10, 10
Step-by-step explanation:
i created it that way so yall will take a longer time to answer
Answer:
1. 7/41
2. 7/15
Step-by-step explanation:
1. Probability that it is a multiple of 6 given that it is a 2 digit number: There are 7 numbers that are a multiple of 6 and are 2 digits: 12, 18, 24, 30, 36, 42, and 48. There are 41 numbers that are 2 digits. So, it is 7/41
2. Probability that it is at least 20 given that it is prime. Out of the prime numbers from 1-50, 7 of them are at least 20 and there are 15 primes in that range in total. So, it is 7/15
Answer:
9-3=6
Step-by-step explanation:
Line from left to right: number 9 (absolute value)
Line from right to left: number 3 (absolute value)
Overall: 9-3=6
We used the minus sign for 3 because the corresponding line is oriented in the opposite direction.
Answer:
20.04 units
Step-by-step explanation:
The diagram shows right triangle ABC. Use the definition of the cosine:
