Answer:
45
Step-by-step explanation:
720/16
16*45=720
Answer:
Step-by-step explanation:
a)
zo=(89.0-92.2)/sqrt((1.5/15)+(1.2/20))
zo=-8.00
p-value=0.0000
Reject the null hypothesis.
b)
95% confidence interval for difference
=(89-92.2)+/-1.96*sqrt((1.5/15)+(1.2/20))
=-3.2+/-0.78
=(-3.98, -2.42)
The range of a linear function can be found by evaluating the end-points, namely [-2,2] (assuming [-2,2] interval notation meaning from -2 to 2 was intended).
f(-2)=-6-12=-18
f(2)=6-12=-6
so the range of function f(x)=3x-12 for the domain [-2,2] is [-18,-6].
If the domain is actually {-2,2}, meaning only x=-2 and x=2, then the range would be {-18,-6}, i.e. exactly two points.
Answer:When x=16 , y=36 . Explanation: If y varies directly as x , then if y increases, x increases, and if y decreases, x decreases.
Step-by-step explanation: because