Solve.x2 + y2 = 164x2 + 9y2 = 36
A. 
, 
, 
, 
B. 
, 
C. 
, 
, 
, 
D. 
, 
Answer: C
Mathematics
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Simplify the numerical expression below.(-85 + 45) + 85
A. 45 B. 125 C. 215 D. -45 E. none of these
Mathematics
Write in logarithmic form.10-4 = 0.0001
A. log10
= 0.0001
B. log40.
= -4
C. log4-4 = 0.10
D. log10
= -4
Mathematics
Simplify the algebraic expression by combining like terms.5.9k - 1.9 - 3.1k + 2 + 2.2k
A. 11.2k + 0.1 B. 5k - 0.1 C. 5k + 3.9 D. 5k + 0.1
Mathematics
Find the exact value of the real number y.y = sin-1 
A. 
B. 
C. 
D. 
Mathematics