Answer:
see attached
Step-by-step explanation:
A polynomial is the sum of terms with variables having positive integer exponents. Coefficient numbers need not be integers.
The term 3/x^4 = 3x^-4 is not such a term, so the expression containing it is not a polynomial.
Answer:
2a + 4 > 12
Step-by-step explanation:
7n+12
if n is the number of students, then n=6 so plug 6 in for n
so 7(6)+12
7(6)=30+12=42
so the cost for 6 students would be $42
Standard Error = standard deviation/sqrt(sample size) = 6/sqrt(50) = 6/7.071 = 0.85