Test the claim that the proportion of people who own cats is significantly different than 50% at the 0.05 significance level. Based on 400 people, 57% owned cats

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line