Answer:
y=-5
Step-by-step explanation:
-10/2=2y/2
-5=y
y=-5
I would say 1700 , I hope this helps
Answer:
Sin (270º)= -1
Cos (270º) = 0
Tan (270º) = -∞
Sin (330º) = -0.5
Cos (330º) = 
= 0.8660
Tan (330º) = - 
= -0.57735
Step-by-step explanation:
Answer:
Part 1: 43.75%
Part 2: 44.07%
Step-by-step explanation:
Hello!
(Pt.1) First, set up a ratio 
. Next, you use long division I got the percent 43.75. After that, you subtract 6 from the girls group, (because of them moving away and then more coming back.) and 2 from the boys group. Then, you subtract those from the school "population" and you get 472 as the final population. So then you set up another ratio, 
. I got a percent of 44.07% from that.
Thanks For Reading!
Answer:
Option A - 4.91
Step-by-step explanation:
The formula for theoretical standard deviation of uniform distribution is;
σ = √{(b-a)^2}/12
Now from the question, b = 38 minutes and a= 21 minutes
Therefore, σ = √{(38-21)^2}/12
= √{17^2}/12 = √289/12 = 4.907 which is approximately 4.91
