The circumference of a circle is 53.38 cm. The radius of the circle is 8.5 cm. Which expression best represents the value of *sign*

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola

In a right triangle δabc, the length of leg ac = 5 ft and the hypotenuse ab = 13 ft. find: b the length of the angle bisector of angle ∠a.