Answer: either of two angles whose sum is 180°.
Step-by-step explanation:
Answer:
f(x) and g(x) are closed under multiplication because when multiplied, the result will be a polynomial.
Step-by-step explanation:
The set of all polynomials is <em>closed</em> under addition, subtraction, and <em>multiplication</em>, because performing any of these operations on a pair of polynomials will give a polynomial result.
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<em>Comment on the question</em>
The wording is a bit strange, because f(x) and g(x) are elements of a set (of polynomials), so cannot be said to be "closed." "Closed" is a property of a set with respect to some function, it is not a property of an element of the set.
Does the person have to be expert? Because I can help?
we have given the values of x and f(x) in the table we have x=2 and f(x)=5 for this if we plug x=2 in option f(2)=2^2+1=4+1=5.
for f(3)=2^3+1=8+1=9.
f(4)=2^4+1=16+1=17 .so the exponential function modelled by the table is option B)f(x)=2^x+1.
4x^2-5x-21 is of the form ax^2+bx+c, a quadratic equation.
so b in this case is -5
