larea consecuente

Calcula. \( \begin{array}{ll}\text { a) }(-4) \cdot(-5) \cdot(-3) & \text { b) }(-60) \div(-10) \\ \text { c) } 96 \div(-8) & \text { d) }(-8) \cdot 3 \cdot(-2)\end{array} \)

\( A = \left[ \begin{array} { c c c } { 1 } & { 3 } & { - 1 } \\ { 2 } & { 0 } & { 4 } \\ { 1 } & { 2 } & { 5 } \end{array} \right] \quad B = \left[ \begin{array} { l l l } { 3 } & { 2 } & { 1 } \\ { 4 } & { 0 } & { 1 } \\ { 0 } & { 1 } & { 1 } \end{array} \right] \)

Bao owns a small business selling used books. She knows that in the last week 60 customers paid cash, 3 customers used a debit card, and 27 customers used a credit card. Based on these results, express the probability that the next customer will pay with a credit card as a fraction in simplest form.

What are the zeros of \( f(x)=x^{2}+x-12 \) ? A. \( x=-4 \) and \( x=3 \) B. \( x=-2 \) and \( x=6 \) C. \( x=-6 \) and \( x=2 \) D. \( x=-3 \) and \( x=4 \)

Calcola la lunghezza di una circonferenza il cui raggio misura la metà di \[ [10 \pi \mathrm{~cm}=31,4 \mathrm{~cm}] \]