Answer: $ 2.55
Step-by-step explanation:
Answer:
Step-by-step explanation:
Hello!
Use the distributive property and multiply like terms.
<h3>Simplify</h3>
The simplified form is .
-(-2)^4 = 16
The - sign multiplies inside the bracket to a positive, 2^4 = 16
Answer:
Systematic sampling
Step-by-step explanation:
An EPA contractor needing to test the concentration of a substance in ten samples out seventy samples provided form a single source at regular time intervals.
For the contractor to effectively carry out the testing he has to employ a Non-probability system of sampling which is called Systematic sampling, because in systematic sampling we can assume the population size (x ) which in this case is 70 and the sample size( n ) to be 10
He will have to select ; ( x / n )^th of the sampling frame for best results
Mixed number is (wholenumber)+(properfraction)
a proper fraction is a/b where a<b and b≠0
so
percent means parts out of 100
x%=x/100
so
276%=
276/100=
200/100+76/100=
2+76/100=
2+38/50=
2+19/25
2 and 19/25
