Answer:
θ = π + periods of 2π
Sin (π + 2π) = 0
Cos (π + 2π) = -1
Tan (π + 2π) = 0
Step-by-step explanation:
Sin (θ)=0 implies that θ only can be 0 or π plus periods of 2π:
θ = 0+2π
θ = π+2π
For Cos(θ) the values only can be:
Cos (0+2π) = 1 and
Cos (π+2π) = -1
from this, only Cos (π+2π) < 0
So θ only can be θ=π+2π
Answer:
There are 25 students in the class.
Step-by-step explanation:
Since we know the percentage of students who want an ice cream party is 20%, and 5 students want an ice cream party, we know that:
, where S is the total amount of students. We can then solve for S:
Given equation
Multiply by S
Divide by 0.2
Therefore, there are 25 students in the class.
Answer:
B. The lines AB and BC are perpendicular.
Step-by-step explanation:
If all the points are doubled on the x-axis, they are perpendicular.
hope this helps.
Answer:
C. 5 > 15
Step-by-step explanation:
In the given series of inequalities, the inequality sign determines the final outcome.
A. 4 - 2 < 10
4 < 12
< 3
Since < 3, then the inequality is false
B. + 9 < 12
< 3
Since < 3, then the inequality is false
c. 5 > 15
> 3
Since > 3, then the inequality is true
D. 6 > 2
3 >
Since < 3, then the inequality is false
Thus, the only inequality that is true is option C.
Answer:
20 feet below sea level
Step-by-step explanation: