The standard form of equation for the sin function is y = Asin(Bx-C) where A is amplitude, Period is 2π/B, and the phase shift is equal to Bx-C set to zero. C is then obtained in this equation.
For given problem: A is equal to 2, period=2π/B=2π/1=2π, where B is equal to 1. Period then is equal to A. 2pi
Answer:
<h3>Greater than 20</h3>
Step-by-step explanation:
Since mean is the average number of students, the formula for calculating the mean attendance of students is expressed as;
Mean = total number of student/sample size
Given mean = 20
Since the question talks about the first four meetings, the sample size = 4
<em>Since the sum total of students for the first four meetings is 80, hence the number of students who attended the meeting is greater than 20</em>
Answer : option C
An electrician is hired to install a ceiling fan. She estimates that the installation will take no more than 45 minutes if the house is up to building code. The installation will take 45 minutes or less than 45 minutes. So we put a solid circle at 45 and shade to the left.
If the house is not up to building code, she estimates that the installation will take longer than 120 minutes. The installation will take more than 120 minutes. So we put a hollow circle at 120 and shade to the right.
So third diagram is correct.
$62 is both numbers added together