Answer:
h(x)=-3;x=0
Step-by-step explanation:
When given h(x), you are in effect, being given the output of the function.
So, placing h(x)=-3 in place for h(x)
We get
-3=2x-3
Where -3+3=2x
0=2x
x=0
So, x=0
To get the number of members between 15 years and 30 years we proceed as follows:
z=(x-μ)/σ
where:
mean,μ=23
standard deviation, σ=4 years
thus
P(15<x<31)
when x=15
P(x<15)
z=(15-23)/4
z=-2
thus
P(x<15)=P(z<-2)=0.0228
when x=31
z=(31-23)/4
z=2
thus
P(x<31)=P(z<2)=0.9772
Hence:
P(15<x<31)=0.9544
hence the number of members between that age was:
0.9544×300
=286.32 people
~285 People
Answer: 285 people
Answer:
2
Step-by-step explanation:
Answer:
23560
Step-by-step explanation:
3% of 19k is 570
570*8=4560
4560+19000=23560
Answer:
(19+7)÷2-5
Step-by-step explanation:
you need to add 19 and 7 together first to get 8 then go in order of operations
