Find the sum without the use of a number line.-11 + (-20)
A. 31
B. -9
C. 9
D. -31
Answer: D
Mathematics
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Find the length of the arc intercepted by the given central angle ? in a circle of radius r.? = 
, r = 78.2 m
A. 52.1 m B. 117.3 m C. 163.8 m D. 368.5 m
Mathematics
Find the values of the variables.
= 
A. m = 11, n = -9, x = 3 B. m = -11, n = 9, x = -3 C. m = 7, n = -5, x = 3 D. m = -9, n = 11, x = 0
Mathematics
Evaluate the expression for the given replacement values.
x = 2, y = 2, z = 12
A. - 2
B. - 
C. - 
D. 
Mathematics
Find the difference.0 - 11
A. 11 B. 0 C. -11 D. -(-11)
Mathematics