Answer the question.How can the graph of f(x) =  - 12 be obtained from the graph of 

A. Reflect it across the x-axis. Shift it 12 units down.
B. Reflect it across the y-axis. Shift it 12 units down.
C. Reflect it across the y-axis. Shift it 12 units up.
D. Reflect it across the x-axis. Shift it 12 units up.


Answer: B

Mathematics

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Use Euler's formula to answer the question.A prism has 10 faces. How many vertices and edges does it have?

A. 24, 24 B. 16, 24 C. 24, 16 D. 16, 16

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Determine whether the ordered pair is a solution of the given equation.(-4, 4)y = x + 8

A. No B. Yes

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Solve the system, using Cramer's rule, if possible. x - 2y + 3z = 114x +  y -  z = 42x -  y + 3z = 10

A. ? B. {(-2, -3, 3)} C. {(2, -3, 1)} D. {(2, 3, 5)}

Mathematics

Solve.The loudness, D, in decibels of a sound of intensity I is given by   D = 10 log (I/I0), where I is measured in watt/m2 and I0 = 10-12 watt/m2. What is the decibel level of a noise whose intensity is 4.87 x 10-5 watt/m2? (Round to the nearest whole number.)

A. 67 decibels B. 77 decibels C. 177 decibels D. 8 decibels

Mathematics