Solve the formula for r.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: B
Mathematics
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Find the GCF for the group of monomials.24xy9, 36x6y5, and -108x9y7
A. 12x9y9 B. 216x9y9 C. 6xy D. 12xy5
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Find the power of i.i19
A. -1 B. -i C. 1 D. i
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Use the information given about the angle ? to find the exact value of the indicated trigonometric function.sin ? = 
, tan ? > 0Find cos 
.
A. 
B. 
C. 
D. 
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Solve the problem.y varies jointly as a and b and inversely as the square root of c. y = 18 when a = 2, b = 9, and 
Find y when a = 6, b = 7, and c = 25.
A. 6.72 B. 8.4 C. 840 D. 33.6
Mathematics