Solve the problem.Find the perimeter of the scalene triangle, a triangle with all three sides a different length. Recall that the perimeter of a figure is the distance around a figure.
A. 
m
B. 
m
C. 
m
D. 
m
Answer: D
Mathematics
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Let x represent one number and let y represent the other number. Use the given conditions to write a system of equations. Solve the system and find the numbers.Two numbers total 16, and their difference is 20. Find the two numbers.
A. 18 and - 2 B. 8 and - 12 C. 16 and 2 D. 9 and 7
Mathematics
Find the average value of the function over the given interval.f(x) = 
+ 2 on [-7, 7]
A. 11
B. 77
C. 
D. 
Mathematics
Find the indicated root, or state that the expression is not a real number.
A. not a real number B. -1 C. 1 D. 0
Mathematics
Solve the system of equations by substitution.x + y = -9x - y = 17
A. (4, -13) B. (4, 13) C. (9, 4) D. (9, -13)
Mathematics