The value of the _____ determines whether the graph of an exponential function is increasing or decreasing from left to right.
2 answers:
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Answer:
4.20
Step-by-step explanation:
Given data:
the average increase in sales 'x' = 18
ad campaign will increase sales for a fast-food chain 'μ'= 15
standard deviation 'σ'= 5
random sample of stores 'n'=49
In order to determine z-value, we use the formula i.e
z=( x-μ ) / (σ/ )
z=( 18-15) / (5/ )
z= 3/ 0.714
z= 4.20
Answer:
31) They divided by 100, they're suppose to times 0.86 by 100 instead, which will be 86%
33) 0.34 x 100=34%
35) we do the inverse to turn it back into
a decimal which will be 0.36
36) 16.24÷100=0.6424