What is the approximate area of the shaded sector in the circle shown below?

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)

[tex]5 \times1 \frac{12}{13} [/tex] me