Why is a fixed interest rate almost always better than a variable interest rate?

Fixed interest rate is the interest rate on loans that does not change during the fixation period. It is typical of short-term and medium-term loans and is guaranteed throughout the maturity of the loan. The fixed interest rate is entered into with the relevant bank in the form of a contract that guarantees the fixed amount of agreed installments throughout the agreed period.

The fixed interest rate is always better than the variable interest rate because it guarantees to the one who obtained the loan or made the investment a security in the money that should be paid or obtained as a result of the operation, and does not subject that amount to external factors that can affect this interest rate if it was variable.

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step-by-step explanation:

you put them as all the same denominator and multiply

the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

the root or roots of a polynomial are the values of the variable that makes the polynomial equal to 0. we can find the roots of a polynomial making the expression equal to 0 and then, isolating the variable (it it has just one variable).

for example, given the following polynomial:

the root or zero of the polynomial, can be found by making the expression equal to 0, and then, isolating the variable, so, finding the root we have:

therefore, we have that the root of the polynomial is equal to 2.

we must remember that the number of roots that a polynomial can have, will depend on the degree of the polynomial, a first degree polynomial have will have one single root, a second degree polynomial (quadratic expression) may have two roots and so.

hence the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

have a nice day!