PLEASE HELP1.What is the sum of the measures of the interior angles of a heptagon?
A. 1260∘
B. 2520∘
C. 900∘
D. 1800∘
my answer is C
5.If the sum of the interior angle measures of a polygon is 3600∘, how many sides does the polygon have?
A. 22 sides
B. 20 sides
C. 18 sides
D. 10 sides
MY...
5. Which of these quadratic functions has exactly one x -intercept?
o A. y=x 2 −9
o B. y=x 2 −6x+9
o C. y=x 2 −5x+6
o D. y=x 2 +x−6
A
2. What are the x-intercepts of y=(x−2)(x+5) ?
o A. (0, 2) and (0, -5)
o B. (0, -2) and (0, 5)
o C. (-2, 0) and (5, 0)
o D. (2, 0) and (-5, 0)
D
5. Which of...