Solve the system by substitution.x - 7y = 6 x = 8y
A. {(6, 48)}
B. {(-48, -6)}
C. 
D. {(48, 6)}
Answer: D
Mathematics
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A. -17 B. 19 C. -7 D. 29
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Establish the identity.(1 - cos x)(1 + cos x) = sin2x
What will be an ideal response?
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Supply the missing numbers. Round decimals to the nearest thousandth and percents to the nearest tenth of a percent.fractiondecimalpercent?133.3%
A. 1
1.333
B. 1
13.33
C. 1 13.33
D. 1 1.333
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Graph the function.f(x) = x3 
A. 
B. 
C. 
D. 
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