BRAINLIESTTT ASAP! PLEASE HELP ME :)

Determine whether the conjecture is true or false. Give a counterexample for any false conjecture.

Given: a concave polygon
Conjecture: It can be regular or irregular.

A. False; a concave polygon has an odd number of sides.
B. False; to be concave the angles cannot be congruent.
C. False; all concave polygons are regular.
D. True

B. False; to be concave the angles cannot be congruent.

Step-by-step explanation:

Regular Polygons are never concave.

The answer is B

Step-by-step explanation:

In order for a polygon to be regular, all angles must be congruent.

the first option is the answer.

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.