The Apple Company wants to investigate the defect rate of iPhones. So, Apple tests every 10th phone off the production line. Is this a biased or unbiased way to test phones
biased, because they aren't testing each phone
unbiased, because they are randomly choosing every 10th phone
biased, because they are only testing Apple phones
unbiased, because they need to make sure phones are working

Which will form a composite function?

The number of members f(x) in a local swimming club increased by 30% every year over a period of x years. the function below shows the relationship between f(x) and x: f(x) = 10(1.3)xwhich of the following graphs best represents the function? graph of f of x equals 1.3 multiplied by 10 to the power of x graph of exponential function going up from left to right in quadrant 1 through the point 0, 0 and continuing towards infinity graph of f of x equals 10 multiplied by 1.3 to the power of x graph of f of x equals 1.3 to the power of x

Triangle abc has side lengths: ab = 3.5  cm, bc = 2.4 cm, and ac = 4.2 cmδabc ≅ δhjkwhat is the length of side hj?