Find the constant of variation when t varies directly as the square of s, and t = 64 when s = 4.
A) 11
B) 4
C) ¼
D) 1/11
E) 16
B) 4
Mathematics
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?Which of the following is not true about subtracting integers?
A. ?-(-6) is positive. B. ?If a< b, and both a and b are negative, then a - b is positive. C. ?If a < b and a is negative, and b is positive, then a - b is negative. D. ?If a < b and a is positive, then b is positive. E. ?If a < b and b is positive, then b - a is positive.
Mathematics
Evaluate the integral.
A. 128
B. 
C. 
D. 1024
Mathematics
Evaluate. Assume that all variables represent positive numbers. 
A. 
B. 
C. - 
D. - 
Mathematics
Find the angle between vectors v and w. Round the answer to the nearest tenth of a degree.v = i - j, w = 2i + 4j
A. 116.6° B. -18.4° C. 18.4° D. 108.4°
Mathematics