Which expression is a quadratic binomial? x2−9x 2x4+9x2−6x−1 7x² 3x4−2x

FIRST OPTION

Step-by-step explanation:

By definition you can classify a polynomial according to its number of terms. You can also classify it by its degree (the largest exponent is the degree).

Then, if the expression is a quadratic binomial (or a binomial of degree 2), it must have:

Therefore, based on this, you can conclude that the answer is the first option, which is shown below:

idk

step-by-step explanation:

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies