Which polynomial has degree 3?
а. x+x? - 2х*
b. – 2x2 – 3х+4
с. x+x+ 123
d. 1+x+x
select the best answer from the choices provided

What is the value of x in the diagram below?

Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.