A manufacturer receives parts from two suppliers. A simple random sample of 400 parts from Supplier 1 finds 20 defective. A simple random sample of 200 parts from Supplier 2 finds 20 defective. Let p 1 and p 2 be the proportion of all parts from Supplier 1 and Supplier 2, respectively, that are defective. Is the difference statistically significant at the 5% significance level? To determine this, test the hypotheses H 0: p 1 = p 2 versus H a: p 1 p 2.

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation:

answer: the answer is one

step-by-step explanation:

pemdas, in this situation there is no parenthesis or exponents so you go to multiplication, 1x1=1, then division 1/1= 1 then addition 1+1=2 then subtraction 2-1=1

correct choice is a

step-by-step explanation:

the equation of the line passing through the points and is

thus, the equation of the line that passes through the points (0, -6) and (-3, 0) is