An arrow is shot so that it hits the target above. which of the following describes the method for calculating the probability of hitting the red region?
a. area of white circle/ (area of blue circle - area of yellow circle)
b. (area of blue circle - area of yellow circle) / area of white circle
c. area of white circle / (area of red circle - area of yellow circle)
d. (area of red circle - area of yellow circle) / area of white circle

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?

Azul has 4 green picks and no orange picks.you add orange picks so that there are 2 orange picks for every 1 green pick.how many picks are there now.

"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?