Katie's final grade in the class was based on weighted averages of her assignment grade, mid-term exam grade, and final exam grade. assignments were 25%, the mid-term exam grade was 35%, and the final exam grade was 40% of her final grade. this equation can be used to find the weighted average: weighted average = (weight·mid-term grade) +(weight·final exam grade) +(weight·assignment average) what is katie's weighted average in the class? enter your answer in the box. the weighted average should be a percentage to the hundredths place. katie's weighted average is what i don’t understand weighted averages

answer: i oofed

step-by-step explanation:

oofed=wow

whatare you sayig

step-by-step explanation:

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.

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!