Acoffee shop surveyed three groups of 5 customers to find out how many cups of coffee the customers drink in one day. the table shows the results of the three samples. group 1 {1, 3, 2, 2, 4} group 2 {4, 1, 3, 2, 1} group 3 {5, 4, 6, 4, 6} identify any surveys that are likely biased. based on the unbiased surveys, estimate the mean number of cups of coffee the customers drink in one day. enter your answer in the box. round to the nearest whole number.

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Evaluate 8x2 + 9x − 1 2x3 + 3x2 − 2x dx. solution since the degree of the numerator is less than the degree of the denominator, we don't need to divide. we factor the denominator as 2x3 + 3x2 − 2x = x(2x2 + 3x − 2) = x(2x − 1)(x + 2). since the denominator has three distinct linear factors, the partial fraction decomposition of the integrand has the form† 8x2 + 9x − 1 x(2x − 1)(x + 2) = correct: your answer is correct. to determine the values of a, b, and c, we multiply both sides of this equation by the product of the denominators, x(2x − 1)(x + 2), obtaining 8x2 + 9x − 1 = a correct: your answer is correct. (x + 2) + bx(x + 2) + cx(2x − 1).

Order the integers from least to greatest. =0 =1 =2 =3 = -3