The equation D = 
n(n - 3) gives the number of diagonals D for a polygon with n sides. Use this equation to solve the problem.Find the number of diagonals for a polygon that has 10 sides.
A. 70 diagonals
B. 7 diagonals
C. 35 diagonals
D. 65 diagonals
Answer: C
Mathematics
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Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.
A. 
B. 
C. 
D. 
Mathematics
Find the perimeter and area of the figure.A square with side 5.9 cm
A. P = 23.6 cm, A = 34.81 cm2 B. P = 69.62 cm, A = 34.81 cm2 C. P = 33.6 cm, A = 69.62 cm2 D. P = 11.8 cm, A = 69.62 cm2
Mathematics
Find the exact value under the given conditions.sin ? = 
, 
< ? < ?; cos ? = 
, 0 < ? < 
Find cos (? - ?).
A. 
B. 
C. 
D. 
Mathematics
Find the real zeros of the function. List the x-intercepts of the graph of the function.P(x) = (2x - 7)2 + 4(2x - 7) - 12
A. x = - 
, x = - 
B. x = 
, x = - 
C. x = 
, x = 
D. x = - 
, x = 
Mathematics