Answer:
D. 50
Step-by-step explanation:
Width: 2z × sqrt(var/n)
Interval is wider when:
z is higher
n is smaller
In the options, least value of n is 50
Answer:
last one
Step-by-step explanation:
because it's correct
Exponential equation are functions defined by 
The equation that could represent Rainey graph must take the form 
<h3>How to determine the equation</h3>
An exponential equation is represented as:

Where:
- a represents the initial value
- b represents the rate
The initial value (a) is 15.
So, the equation becomes

The graph is not given;
So, the equation cannot be determined.
Assume that the rate is 2.
Then the function would be: 
Read more about exponential functions at:
brainly.com/question/11464095
Answer:
51 deg
Step-by-step explanation:
Sin W=0.7771
(use calculator)
W = 50.996 deg
= 51 deg (to nearest degree)
Answer:
y=4x/3+9/3
Step-by-step explanation:
slop is 4x/3
and the point is 3,6
so y-6 = 4x/3(x-3)
sove the you will have y=4x/3+9/3