Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. 3x + 5y = -102x + 4y = -6

A. (5, -1)
B. (-1, 5)
C. (-5, 1)
D. (1, -5)

Answer: C

Mathematics

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Solve the problem.Suppose a cold front is passing through the United States at noon with a shape described by the function  where each unit represents 100 miles.  Missouri is located at  and the positive y-axis points north.N    

src="https://sciemce.com/media/4/ppg__fd0518191838__f1q41g6.jpg" alt="" style="vertical-align: -4.0px;" /> SSuppose the front moves south 340 miles and west 120 miles and maintains its shape. Give the equation for the new front and plot the new position of the front.

A. y = (x - 1.2)2 - 3.4

N
     
S

B. y = - (x + 1.2)2 - 3.4
N
     
S

C. y = (x + 1.2)2 - 3.4
N
     
S

D. y = (x - 1.2)2 + 3.4
N
     
S

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Mathematics

For the following rational function, identify the coordinates of all removable discontinuities and sketch the graph. Identify all intercepts and find the equations of all asymptotes.f(x) =  

A. removable discontinuity at ;
no x-intercept, no y-intercept;
asymptotes x = 3, y = 0

B. removable discontinuity at ;
no x-intercept, no y-intercept;
asymptote x = -3

C. no removable discontinuities;
no x-intercept, no y-intercept;
asymptotes x = 3, x = 0, y = 0

D. no removable discontinuities;
no x-intercept, no y-intercept;
asymptotes x = -3 x = 0, y = 0

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Mathematics

Solve.For a resistor in a direct current circuit that does not vary its resistance, the power that a resistor must dissipate is directly proportional to the square of the voltage across the resistor. The resistor must dissipate  watt of power when the voltage across the resistor is 10 volts. Find the power that the resistor must dissipate when the voltage across it is 20 volts.

A.  watt
B.  watt
C.  watts
D.  watt

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Mathematics

Graph the hyperbola.4y2 = 9x2 + 36

A.

B.

C.

D.

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Mathematics