Answer: -0.36
Step-by-step explanation:
Given: Mean : 
Standard deviation : 
We know that the formula to calculate the z-score is given by :-
For x=8.2 minutes, we have
Hence, the z-score for this amount of advertising time = -0.36
Your answer would be 31.5 (so 32 when rounded up)
For triangles you basically multiply them together, and the divide your answer by two.
A= 1/2 b x h
A= 1/2 7 x 9
A= 1/2 63
A= 31.5 (rounded up to 32)
I hope I helped and if you need more you could always ask me :)
-Dawn
Answer:
Adult= $24
child= $21
Step-by-step explanation:
first let's create an equation for each one.
Day 1: 7x+8y=168
day 2: 14x+13y=294
By doing so we can either graph and get the points for x,y or we can substitute each (x=0) (y=0) and solve manually.
x-int.= (24,0)
y-int.=(0,21)
A=pi x radius^2, diameter=36/w=18 radius
a=3.14 x 18^2=1,017.36 since it is a semicircle, divide by 2.
1017.36/2=508.68 inch. squared.
Just plug in -1 for x and u should get ur answer
