Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets. 9x - 3y = 7-36x + 12y = -21
A. 
B. {(4, 3)}
C. {(x, y)| 9x - 3y = 7}
D. ?
Answer: D
Mathematics
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Multiply the monomial and the polynomial.-9x2y(4x2y4 - 9xy3 + 4)
A. -36x4y5 + 81x3y4 - 36x2y B. -36x4y5 + 81x3y4 - 36 C. -36x2y5 + 81x3y4 - 36x2y D. -36x4y5 - 81x3y4 + 36x2y
Mathematics
Solve the problem. Round to the nearest hundredth.76 is 44% of what number?
A. 172.73 B. 58.00 C. 0.58 D. 1727.30
Mathematics
Provide an appropriate response. Use the conversion tables in the text to change 70 kilometers per hour to miles per hour. Explain the process you used.
What will be an ideal response?
Mathematics
Find the amplitude, period, or phase shift of the given function as requested.Find the amplitude of y = 5 cos 
.
A. -5
B. - 
C. 
D. 5
Mathematics