Retail price for a 24 dollar hat with a markup of 40% =
24 * .40 = 9.6
24 + 9.6 = $33.60 dollars
Answer:
The standard deviation reduces when sample size (n) increases
Step-by-step explanation:
From the above information given, we have that mean = 75.5
Standard deviation = 3.5
But Standard deviation = √summation (x-u)/n
This simply implies that when sample (n) is increased there would be a reduction in the standard deviate.
The given function is
f(x)= 0.2 x²
Since f(x) will be defined for all real values of x.
So, Domain of f(x) will be ( x| x is a real number.)→This is set builder notation.
Finding the inverse of f(x):
y = 0.2 x²
→ x²= 5 y
→x = 
→ → Inverse of f(x)
Replacing x by y and y by x,we get inverse of the given function
y = 
→ →Domain x ≥ 0, x∈[0,∞]
Graph of function and its inverse are shown below.
Answer:
25%
Step-by-step explanation:
.25(3,600)=900
3,600+900=4,500
Step-by-step explanation:
- 7p-9= -22
- 8p=-22+9
- 8p= -13
- p=-13/7
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