the number 3.14 is a rounded value of the mathematical quantity pi. if you replace 3.14 with pi, what is the exact formula of rn the circumference in terms of the diameter ,d, in the terms of radius, r?

In which form is the following function written? y = - 2(x – 3)(x + 5)

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why? a. point c could be the interior of aob but it is not the only case b. point c is the interior of aob c. point c is not the interior of aob d. the given is not possible for the plane geometry answer

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?