Find the probability. When two balanced dice are rolled, there are 36 possible outcomes. Find the probability that either doubles are rolled or the sum of the dice is 8 .

Factor the following. \( 64 x^{2}-121 y^{2} \)

Divide the polynomial by the binomial. (Simplify your answer completely.) \[ \left(4 x^{2}-29 x-63\right) \div(x-9) \] \( \square \)

Assume that a procedure yields a binomial distribution with a trial repeated \( n \) times. Use the binomial probability formula to find the probability of \( x \) successes given the probability \( p \) of success on a single trial. \( n=16, x=3, p=0.25 \) \( P(3)=\square \) (Round to three decimal places as needed.)

\begin{tabular}{l} Question 4 \\ If a triangle is classified as an isosceles and obtuse-angled triangle, which of the following must be true? \\ It has two obtuse angles. \\ It has all three angles equal. \\ It has exactly one obtuse angle. \\ \hline\end{tabular}

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