Find the system of linear equations represented by the augmented matrix. Then use back substitution to solve. (Use variables x, y, z, and w if applicable.)
?
?
A. ?
??(7, 0)
B. ?
??(-1, 7)
C. ?
??(7, -1)
D. ?
??(7, 1)
E. ?
???(7, 1)
Answer: C
Mathematics
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Rearrange the equation into standard form.4x2 = -4x - 5
A. 4x2 - 4x - 5 = 0 B. 4x2 + 4x = -5 C. 4x2 + 4x + 5 = 0 D. 4x2 - 4x + 5 = 0
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Multiply 4/-28è ð 9/-36è
What will be an ideal response?
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Express as the logarithm of a single expression. Assume that variables represent positive numbers.log47 - log411
A. log4-4
B. log4
C. log4
D. log8
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Use a calculator to approximate to three decimal places.
A. 4.463 B. 2.112 C. 1517.243 D. 0.112
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