A) el opuesto del polinomio -7xy + 11 y es? falso o verdadero b) al restar 28xy² de 35xy² , se obtiene -7xy²... falso o verdadero
c) en la adición de polinomios se utiliza el polinomio opuesto ... falso o verdadero​

If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true